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Test whether the mean IQ score has changed, Ho: = 107 versus H,: u# 107, with a simple random sample of size n= 35. Complete parts (a) through (e) below. A Click here to view the t-Distribution Area in Right Tail. (a) Does the population have to be normally distributed to test this hypothesis? Why? O A. No, because n2 30. O B. Yes, because the sample is random. O C. No, because the test two-tailed O D. Yes, because n2 30 (b) If x= 104.0 and s 5.7, compute the test statistic. The test statistic is to = (Round to two decimal places as needed.) (c) Draw a t-distribution with the area that represents the P-value shaded red. Choose the correct graph below OC. OA. OB. (d) Approximate the P-value. Choose the correct answer below. O A. 0.001

Test whether the mean IQ score has changed, Ho: = 107 versus H,: u# 107, with a simple random sample of size n= 35. Complete parts (a) through (e) below. A Click here to view the t-Distribution Area in Right Tail. (a) Does the population have to be normally distributed to test this hypothesis? Why? O A. No, because n2 30. O B. Yes, because the sample is random. O C. No, because the test two-tailed O D. Yes, because n2 30 (b) If x= 104.0 and s 5.7, compute the test statistic. The test statistic is to = (Round to two decimal places as needed.) (c) Draw a t-distribution with the area that represents the P-value shaded red. Choose the correct graph below OC. OA. OB. (d) Approximate the P-value. Choose the correct answer below. O A. 0.001

MATLAB: An Introduction with Applications
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
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Test whether the mean IQ score has changed, Ho: = 107 versus H,: µ# 107, with a simple random sample of size n= 35. Complete parts (a) through (e) below. E Click here to view the t-Distribution Area in Right Tail. (a) Does the population have to be normally distributed to test this hypothesis? Why? O A. No, because n2 30. O B. Yes, because the sample is random. O C. No, because the test is two-tailed. O D. Yes, because n2 30 (b) If x= 104.0 and s= 5.7, compute the test statistic. The test statistic is to =. (Round to two decimal places as needed.) (c) Draw a t-distribution with the area that represents the P-value shaded red. Choose the correct graph below. OC. OA. OB. (d) Approximate the P-value. Choose the correct answer below. O A. 0.001 < P-value <0.002 O B. 0.01 <P-value <0.02 OC. 0.002 <P-value <0.005 O D. 0.005 <P-value <0.01 Click to select your answer(s).
Transcribed Image Text:Test whether the mean IQ score has changed, Ho: = 107 versus H,: µ# 107, with a simple random sample of size n= 35. Complete parts (a) through (e) below. E Click here to view the t-Distribution Area in Right Tail. (a) Does the population have to be normally distributed to test this hypothesis? Why? O A. No, because n2 30. O B. Yes, because the sample is random. O C. No, because the test is two-tailed. O D. Yes, because n2 30 (b) If x= 104.0 and s= 5.7, compute the test statistic. The test statistic is to =. (Round to two decimal places as needed.) (c) Draw a t-distribution with the area that represents the P-value shaded red. Choose the correct graph below. OC. OA. OB. (d) Approximate the P-value. Choose the correct answer below. O A. 0.001 < P-value <0.002 O B. 0.01 <P-value <0.02 OC. 0.002 <P-value <0.005 O D. 0.005 <P-value <0.01 Click to select your answer(s).
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