Move the blue dot to choose the appropriate test 4 -4 -3 -2 -1 C 1 2 3

Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter1: Fundamental Concepts Of Algebra
Section: Chapter Questions
Problem 28RE
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Professor Johnson suspects his new class of social science majors scored higher on his midterm exams than previous years. After measuring the mean of 40 exams, and using a known population standard deviation, he calculates a test statistic of  z0=0.73.  Using the alternative hypothesis Ha:μ>0.72, determine the p-value of a right-tailed one-mean hypothesis test, with a test statistic of z0=0.73? (Do not round your answer; compute your answer using a value from the table below.)

z 0.00 0.01 0.02 0.03 0.04 0.05 0.06 0.07 0.08 0.09
0.6 0.726 0.729 0.732 0.736 0.739 0.742 0.745 0.749 0.752 0.755
0.7 0.758 0.761 0.764 0.767 0.770 0.773 0.776 0.779 0.782 0.785
0.8 0.788 0.791 0.794 0.797 0.800 0.802 0.805 0.808 0.811 0.813
0.9 0.816 0.819 0.821 0.824 0.826 0.829 0.831 0.834 0.836 0.839

 

Use the curve below to help visualize your answer. Select the appropriate test by dragging the blue point to a right-, left- or two-tailed diagram, then set the test statistic on the x-axis to find the p-value.
 

Based on the p-value, choose the correct interpretation.

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Move the blue dot to choose the appropriate test
(see picture) 
 
Select the correct answer below:
 

1) The probability of observing a value of z0=0.73 or more if the null hypothesis is true is 23.3%.

 

2) The probability of observing a value of z0=0.73 or less if the null hypothesis is true is 23.3%.

 

3) The probability of observing a value of z0=−0.73 or less if the null hypothesis is true is $76.7\%$_.

 

4) The probability of observing a value of z0=0.73 or more if the null hypothesis is true is 99.7%.

Move the blue dot to choose the appropriate test
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Transcribed Image Text:Move the blue dot to choose the appropriate test 4 -4 -3 -2 -1 C 1 2 3
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