the proportion of professional golfers who are left-handed is claimed to be 0.06. believing this claimed value is incorrect, a researcher surveys a large random sample of professional golfers and finds the proportion of left-handed golfers in the sample to be 0.03. when a hypothesis test is conducted at a significance (or alpha) level of 0.01, the p- value is found to be 0.04. what decision should the researcher make based on the results of the hypothesis test? a. the null hypothesis should be rejected because 0.03 is greater than 0.01. b. the null hypothesis should not be rejected because 0.04 is greater than 0.03. c. the null hypothesis should be rejected because 0.03 is less than 0.06. d. the null hypothesis should not be rejected because 0.04 is greater than 0.01. e. the null hypothesis should be rejected because 0.04 is less than 0.06.
The researcher makes decisions based on the results of the hypothesis test : d. The null hypothesis should not be rejected because 0.04 is greater than 0.01.
The correct decision for the researcher to make based on the results of the hypothesis test is d. The null hypothesis should not be rejected because 0.04 is greater than 0.01. The researcher's sample provides evidence that the proportion of left-handed professional golfers is less than the claimed value of 0.06, which supports rejecting the null hypothesis.
The p-value of 0.04 is greater than the significance level of 0.01, but this does not impact the decision as the decision is based on the comparison between the sample proportion and the claimed value.
The researcher should make the decision based on the comparison of the p-value with the significance level (alpha).
In this case, the significance level (alpha) is 0.01 and the p-value is 0.04.
Since the p-value (0.04) is greater than the significance level (0.01), the researcher should not reject the null hypothesis.
Therefore, the correct answer is:
d. The null hypothesis should not be rejected because 0.04 is greater than 0.01.
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Select which angle is supplementary to angle 1
Answer:
Angle 2
Step-by-step explanation:
Suplementary - 2 angles which equal 180 degrees
Arianna' Diner old 80 milkhake lat week. 35% of the milkhake had whipped cream on top. How many milkhake with whipped cream were old?
The amount Arianna sold 80 milkshakes last week, and 35% of them had whipped cream on top. This means 28 milkshakes had whipped cream.
Arianna sold 80 milkshakes last week and 35% of them had whipped cream on top. This means that 35% of the total number of milkshakes, 80, had whipped cream. To calculate the amount of milkshakes with whipped cream, we must multiply the total number of milkshakes (80) by 35%. 35% of 80 is 28, so 28 milkshakes had whipped cream. To find the percentage, we divide the amount of milkshakes with whipped cream (28) by the total number of milkshakes (80). When we divide 28 by 80, we get 0.35, which is the same as 35%. Therefore, 35% of the milkshakes sold by Arianna last week had whipped cream on top.
Total milkshakes: 80
Milkshakes with whipped cream: 28
Percentage: 28/80 = 0.35 = 35%
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Find the x-intercept and
the y-intercept from the
following linear equation:
7x + 3y = 63
Answer:
X-intercept is (9,0) and y-intercept is (0,21)
Step-by-step explanation:
X-intercept:
7x+3(0)=63
7x=63
x=9
y-intercept:
7(0)+3y=63
3y=63
y=21
Can someone help me with sub multiple angles trigonometry pls
Answer:
These photos have the formulas of sub multiple angle trigonometry.
Hope it helps:)
Match the given slope (m) and y-intercept (b) with the equation of the line in slope-intercept form.
Slope, m = 2. y-intercept, b = 5
DRAG & DROP THE ANSWER
Slope, m-3, y-intercept, b5
V = 5 +3
Slope, m = 5, y-intercept, b = 4
V=2.1 +5
y = 52 + 2
y = 31 +5
y = 5.2 + 4
Answer:
1) Slope, m = 2, y-intercept, b = 5 ↔ y = 2·x + 5
2) Slope, m = 3, y-intercept, b = 5 ↔ y = 3·x + 5
3) Slope, m = 5, y-intercept, b = 4 ↔ y = 5·x + 4
Step-by-step explanation:
The equation of a straight line in slope and intercept form is given as follows;
y = m·x + b
Where;
m = The slope
b = The y-intercept
1) When m = 2 and b = 5, we have;
The equation of the straight line is y = 2·x + 5
2) When m = 3 and b = 5, we have;
The equation of the straight line is y = 3·x + 5
3) When m = 5 and b = 4, we have;
The equation of the straight line is y = 5·x + 4
GIVING AWAY 20 POINTS!!
HURRY PLEASE!!
QUESTION:
What is mBDG?
Answer:
242
Step-by-step explanation:
Circles have a total of 360°
mDBG does not include mBA or mGA
This means that mDBG = 360 - ( mBA + mGA )
mBA = 28° ( this is given )
mGA = 90° ( this is also given; it's indicated by the right angle )
Thus, mDBG = 360 - ( 28 + 90 )
28 + 90 = 118
mDBG = 360 - 118
360 - 118 = 242
Hence, mDBG = 242
15.75 + 3.2d. find m when d=100
Answer:
There is no m
Step-by-step explanation:
15.75+320=335.75
Answer: 335.75
Step-by-step explanation:
15.75 + 3.2 * 100 because d = 100
To avoid sharing his name with another famous Al, actor Albert Brooks changed his name from what? a. Al Pacino. b. Al Jolson. c. Albert Einstein.
d. Albert Schweitzer
Actor Albert Brook changed his surname to Albert Einstein to avoid sharing it with another well-known Al. Option C
In 1921, Albert Einstein received the Physics Nobel Prize in honor of his contributions to theoretical physics, particularly the creation of the law of the photoelectric effect. Despite moving to Switzerland in 1895 and giving up his German nationality the following year to become a citizen of the County of Württemberg, Einstein was born within the boundaries of the German Empire.
He enrolled in the program for teaching diplomas in physics and mathematics at the Swiss Federal University of Technology School in Zürich in 1897 as a 17-year-old, and he completed it in 1900.
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500% of what number is 4,500?
hihjoigigygggvsusiahs
Answer:
500percent of 900 is 4500
AH = Actual Hours SH = Standard Hours AR = Actual Rate SR = Standard Rate Compute the direct labor rate and efficiency variances for the period and classify each as favorable, unfavorable or no variance
To compute the direct labor rate and efficiency variances, we will use the given terms: Actual Hours (AH), Standard Hours (SH), Actual Rate (AR), and Standard Rate (SR). Here's a step-by-step explanation:
Step 1: Calculate the Actual Labor Cost
Actual Labor Cost = AH * AR
Step 2: Calculate the Standard Labor Cost
Standard Labor Cost = SH * SR
Step 3: Calculate the Labor Rate Variance
Labor Rate Variance = (AR - SR) * AH
Step 4: Classify the Labor Rate Variance
If the Labor Rate Variance is positive, it is unfavorable. If it is negative, it is favorable. If it is zero, there is no variance.
Step 5: Calculate the Standard Labor Cost for Actual Hours
Standard Labor Cost for Actual Hours = AH * SR
Step 6: Calculate the Labor Efficiency Variance
Labor Efficiency Variance = (AH - SH) * SR
Step 7: Classify the Labor Efficiency Variance
If the Labor Efficiency Variance is positive, it is unfavorable. If it is negative, it is favorable. If it is zero, there is no variance.
By following these steps, you can compute the direct labor rate and efficiency variances for the period and classify each as favorable, unfavorable, or no variance.
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Find the Surface Area of the figure below with the following values
Answer: Area = 189
Step-by-step explanation:
How i got the answer was i just simply multiplied the numbers that they had provided for you up on the top. So you would do (21 x 9 = 189). Then you would be left off with your answer 189, which is your surface area for the figure stated in the photo.
~Have a gr8 day/night my friend!~
What is the importance and advantage of using graph representation when organizing your data?
The importance and advantage of using graph representation when organizing your data are that it makes data presentable, summarizing, better way of comparison of data.
An organized diagram or pictorial representation of the relationship between values or data is referred to as a graph. it is a a diagram that depicts a variable's variation in comparison to that of one or more other variables, such as a series of points, lines, line segments, curves, or areas.
The following are the three advantages of graphs:
It makes data look good and makes it easy to understand.It helps to concisely summarize the data.Better data comparison is made possible by it.Know more about graphs here: https://brainly.com/question/17267403
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An ice cream cone is 4 in across and 6 in deep. A scoop of ice cream with a diameter of 4 inches is placed on top. If the ice cream completely melts, how much ice cream spills out of the cone? Round answer to two decimal places.
Answer:
8.373
Step-by-step explanation:
Cone
Find the volume of the cone
V = 1/3 pi r^2 h
r = d/2
r = 4/2
r = 2 inches
h = 6 inches
pi = 3.14
V = 1/3 * 3.14 * 2^2 * 6
V = 25.12
Half sphere
V = 1/2 (4/3) pi r^3
r = 2 from above calculation
pi = 3.14
V = 2/3 * 3.14 * 2^3
V = 2/3 * 3.14 * 8
V = 16.74
Nothing spills out so I scoop must be a whole sphere. The sphere is 2 times what I calculated it to be or
V = (4/3) * 3.14 * 2^3
V = 33.49 cubic inches
The difference in volume is 33.49 - 25.12 = 8.373
Please fill in the 4 blanks. I desperately need the help. 25 points
Local minima: (2,-5)
Local maxima: (0,-1) maybe
I am not sure how to find the intervals though
minima should be your vertex point, the maxima should be the y intercept
Question 4 0/3 pts Suppose the correlation between X1 and X2 is -0.9. What can we say about the regression model Y ~ X1 + X2? Please select all that apply. It's possible that there is only one correct answer. The estimated value of the slope of X1 may be very different from the true value of the slope. There is collinearity in the regression model. The variance of the slope estimator of X1 is increased due to the correlation between X1 and X2.. The variance of the slope estimator of X2 is decreased due to the correlation between X1 and X2.
The correct statement for the correlation between X1 and X2 is -0.9 are the estimated value of the slope of X1 may be very different from the true value of the slope and there is collinearity in the regression model. Options A and B are the correct answer.
A high correlation between X1 and X2 indicates that these variables are highly related and may contain similar information. This means that including both variables in the regression model may lead to collinearity, which can cause problems in estimating the true effects of each variable on the outcome Y.
In particular, when there is collinearity in the model, the estimated value of the slope of X1 may be very different from the true value of the slope. This is because the collinearity makes it difficult to distinguish the effects of X1 and X2 on the outcome, leading to large standard errors and reduced precision in the estimation.
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The question is -
Suppose the correlation between X1 and X2 is -0.9. What can we say about the regression model Y ~ X1 + X2?
Please select all that apply. It's possible that there is only one correct answer.
a. The estimated value of the slope of X1 may be very different from the true value of the slope.
b. There is collinearity in the regression model.
c. The variance of the slope estimator of X1 is increased due to the correlation between X1 and X2.
d. The variance of the slope estimator of X2 is decreased due to the correlation between X1 and X2.
Given the right triangle shown below, prove cos^2(theta)+sin^2(theta)=1
Help soon please
Answer:
definition of cosine, definition of sine, pythagorean theorem, substitution, laws of exponents
Step-by-step explanation:
edge
A survey conducted by a reputed Business School in Texas among 400 students showed that students spend on an average $500 for textbooks in a year. The sample standard deviation was $80. What is the confidence interval for the average amount spent on textbooks in a year if the desired level of confidence is 99%
[489.68, 510.32] is the confidence interval for the average amount spent on textbooks in a year if the desired level of confidence is 99%.
n=400
sample mean (x)=500
sample standard deviation (s)=80
99% confidence interval for mean
α=0.01
critical value \(Z_{\frac{a}{z} }\) =2.58
Standard error of sample mean Sx = \(\frac{s}{\sqrt[]{n} }\) = \(\frac{80}{\sqrt[]{400} }\) = \(\frac{80}{20}\) = \(4\)
∴ Sx = 4
Confidence interval (μ)
μ= \(x\) ± \(Z_{\frac{a}{z} }\) \(\frac{s}{\sqrt[]{n} }\\\)
μ= \(x\) ± \(Z_{\frac{a}{z} }\) (Sx)
=500 ± 2.58(4)
=500 ± 10.32
lower limit = 500 - 10.32 = 489.68
upper limit= 500 + 10.32= 510.32
Hence, [489.68, 510.32] is the confidence interval for the average amount spent on textbooks in a year if the desired level of confidence is 99%.
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E is between D and F. Find DF. PLEASE HELP, PICTURE PROVIDED— DUE TMMR
Answer:
24
Step by-step explanation:
6x=3x-1+13
common like terms (-1+13)
6x=3x+12
subtract 3x on both sides
3x=12
divide 3x on both sides
x=4
insert 4 into equation 6*4=24
3(4)-1+13=24
can someone please help me
Answer:
D. 10x + 8y -12
Step-by-step explanation:
-6x - 12 + 8y + 16x
-6x + 16x -12 + 8y
10x + 8y - 12
Answer:
\( - 6x + 16x + 8y - 12 \\ 10x + 8y - 12\)
D. 10x+ 8y-12
letter d is the answer
Which statement explains how to correct the error that was made?
O The subtraction property of equality should have been applied to move m to the other side of the equation.
O The multiplication property of equality should have been applied in the last step.
The division property of equality should have been used to divide by k instead of m.
O The square root property should have been applied to both complete sides of the equation instead of to select
variables.
Solving for v in the given equation is performed by making v the equation's
subject.
Response:The statement that describes where the error was made is option;
The square root property should have been applied to both complete sides of the equation instead of to select variables.Method for solving for v in the given equation;v can be solved for from the given expression as follows;
\(\displaystyle k = \mathbf{\frac{1}{2} \cdot m \cdot v^2}\)
\(\displaystyle k \div m = \mathbf{\left(\frac{1}{2} \cdot m \cdot v^2 \right) \div m}\)
\(\displaystyle \frac{k}{m} \times 2 = \left( \frac{1}{2} \cdot v^2 \right) \times 2\)
\(\displaystyle \frac{2 \cdot k}{m}= \mathbf{v^2}\)
Taking the square root of both sides of the equation gives;
\(\pm \sqrt{\displaystyle \frac{2 \cdot k}{m}} = \mathbf{\sqrt{v^2}}\)
Therefore;
\(\displaystyle \pm \sqrt{\frac{2 \cdot k}{m} } = v\)
Therefore, the error was made in the step, \(\displaystyle \pm \frac{2 \cdot \sqrt{k} }{m} = \sqrt{v^2}\) , which is by
applying the square root property was applied to only some of the
variables on the left hand side of the equation, rather than the combined
expression on the left hand side of the equation.
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Answer:
The square root property should have been applied to both complete sides of the equation instead of to select variables.
or D
Step-by-step explanation:
I found the answer and just gave it to u straight up and I got it correct
Point (-1,3). m= Undefined.
Find the equation of the line that contains the given point and has the given slope.
And explain..
Answer:
m=1/0 (undefined)
equation=y2-y1/x2-x1=y-y1/x-x1
since M is undefined and M=y2-y1/x2-x1
then the equation=y-y1/x-x1=1/0
y-3/x--1=1/0
cross multiplying
0 (y-3)=1 (x+1)
=x+1
PLEASEEE HELLP. I NEED HELP PLS
Answer:
C
Step-by-step explanation:
Triangle = 180
100+62.7+18=180.7
180.7 is not a triangle
Answer:
C 100.3, 62.7, 18
Step-by-step explanation:
Angles inside of a triangle add up to 180 degrees
Option A
25+85+70=180
Option B
11.6+91+77.4=180
Option C
100.3+62.7+18=181
Option D
60+60+60=180
Option C is the answer as it is the only option that does not add up to 180 degrees
The graph of function f is shown.
The graph of exponential function passes through (minus 0.5, minus 8) and (5, 1) also intercepts the x-axis at the point 1 unit and y-axis at point minus 3
Function g is represented by the table.
x -1 0 1 2 3
g(x) -24 -4 0
Which statement correctly compares the two functions?
A.
They have the same y-intercept and the same end behavior as x approaches ∞.
B.
They have the same end behavior as x approaches ∞, but they have different x- and y-intercepts.
C.
They have the same x-intercept and the same y-intercept.
D.
They have the same x-intercept and the same end behavior as x approaches ∞.
The statement that correctly compares the two functions is
They have the same x-intercept and the same end behavior as x approaches ∞.
What is the end behavior of a function?A function's final behaviour is represented by the value of f(x) as x approaches infinity. Both functions in this scenario have the same final behaviour because they both have unbounded growth, or they both go to positive infinity.
To find y-intercept of a function we have to put x= 0
So, The y-intercept of f(x) is y = -3.
and, The y-intercept of g(x) is y = -4.
To find x -intercept of a function put y = 0
So, The x-intercept of f(x) is x = 1.
and, The x-intercept of g(x) is x = 1.
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Which expression represents the same solution as (4) (negative 3 and startfraction 1 over 8 endfraction?
The expression that represents the same solution as (4) (-3 and 1/8) is -3.125. To understand why this is the case, let's break down the given expression: (4) (-3 and 1/8)
The first part, (4), indicates that we need to multiply. The second part, -3 and 1/8, is a mixed number. To convert the mixed number into a decimal, we first need to convert the fraction 1/8 into a decimal. To do this, we divide 1 by 8: 1 ÷ 8 = 0.125
Next, we add the whole number part, -3, to the decimal part, 0.125: -3 + 0.125 = -2.875 Therefore, the expression (4) (-3 and 1/8) is equal to -2.875. However, since you mentioned that the answer should be clear and concise, we can round -2.875 to two decimal places, which gives us -3.13. Therefore, the expression (4) (-3 and 1/8) is equivalent to -3.13.
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Which function would be produced by a horizontal stretch of the graph of y =
Vat followed by a
reflection in the s-axis ?
Answer:
the answer to you question is c
Step-by-step explanation:
Bernard had 15 red notebooks, 17 blue notebooks and 19 white
notebooks. He gave some of them to Tom and had 5 left. How
many notebooks did Bernard give Tom?
Answer:
He gave 46 to Tom
Step-by-step explanation:
He started is 51 notebooks- 15 + 17 + 19 = 51
He then gave some away until he only had 5 left 51 - 5 = 46
He gave 46 to Tom
Line a and t are parallel. What is the value of x?
7x - 48
5x
pls help me
Answer:
x = 24
Step-by-step explanation:
We know that lines s and t are parallel. Then by definition, the two labelled angles, which are same-side angles, are congruent and equal in measure.
Then, we set the expressions equal to each other:
7x - 48 = 5x
Subtract 5x from both sides:
7x - 5x - 48 = 0
2x - 48 = 0
Add 48 to both sides:
2x = 48
Divide by 2:
x = 48/2 = 24
Thus, x = 24.
~ an aesthetics lover
(C) c varies directly as a and inversely as b. If c= 15 when a = 18 and b = 40, find c when a = 36, and b = 25. = с
Answer:
c = 48
Step-by-step explanation:
Given c varies directly as a and inversely as b then the equation relating them is
c = \(\frac{ka}{b}\) ← k is the constant of variation
To find k use the condition c = 15 when a = 18 and b = 40 , then
15 = \(\frac{18k}{40}\) ( multiply both sides by 40 )
600 = 18k ( divide both sides by 18 )
\(\frac{600}{18}\) = k
\(\frac{100}{3}\) = k
c = \(\frac{100a}{3b}\) ← equation of variation
When a = 36 and b = 25 , then
c = \(\frac{100(36)}{3(25)}\) = \(\frac{3600}{75}\) = 48
Select the correct answer.
What is the simplest form of this expression?
(2x + 1)(x2 - 9x+11)
OA. 2x3 - 19x2 + 11x + 11
OB. 2x3 - 17x2 + 13x + 11
OC. 2x2 + 18x2 + 22x+11
OD
2x3 - 18x2 - 9x + 11
Answer:
2x^3-17x^2+13x+11
Step-by-step explanation:
Answer:
2x^3 -17 x^2 + 13 x + 11
Step-by-step explanation: