Hello, I would like to know how to do the rest of the parts in the problem

MATLAB: An Introduction with Applications
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Author:Amos Gilat
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Chapter1: Starting With Matlab
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Hello, I would like to know how to do the rest of the parts in the problem

A study was done on proctored and nonproctored tests. The results are shown in the table. Assume that the two samples are independent simple random samples selected from normally distributed
populations, and do not assume that the population standard deviations are equal. Complete parts (a) and (b) below.
Proctored Nonproctored
H1
P2
31
32
75.04
11.09
82.47
22.14
State the conclusion for the test.
O A. Fail to reject Ho. There is sufficient evidence to support the claim that students taking nonproctored tests get a higher mean score than those taking proctored tests.
O B. Reject Ho. There is sufficient evidence to support the claim that students taking nonproctored tests get a higher mean score than those taking proctored tests.
O C. Fail to reject Ho. There is not sufficient evidence to support the claim that students taking nonproctored tests get a higher mean score than those taking proctored tests.
O D. Reject Ho There is not sufficient evidence to support the claim that students taking nonproctored tests get a higher mean score than those taking proctored tests.
b. Construct a confidence interval suitable for testing the claim that students taking nonproctored tests get a higher mean score than those taking proctored tests.
(Round to two decimal places as needed.)
Does the confidence interval support the conclusion of the test?
because the confidence interval contains
Click to select your answer(s).
Transcribed Image Text:A study was done on proctored and nonproctored tests. The results are shown in the table. Assume that the two samples are independent simple random samples selected from normally distributed populations, and do not assume that the population standard deviations are equal. Complete parts (a) and (b) below. Proctored Nonproctored H1 P2 31 32 75.04 11.09 82.47 22.14 State the conclusion for the test. O A. Fail to reject Ho. There is sufficient evidence to support the claim that students taking nonproctored tests get a higher mean score than those taking proctored tests. O B. Reject Ho. There is sufficient evidence to support the claim that students taking nonproctored tests get a higher mean score than those taking proctored tests. O C. Fail to reject Ho. There is not sufficient evidence to support the claim that students taking nonproctored tests get a higher mean score than those taking proctored tests. O D. Reject Ho There is not sufficient evidence to support the claim that students taking nonproctored tests get a higher mean score than those taking proctored tests. b. Construct a confidence interval suitable for testing the claim that students taking nonproctored tests get a higher mean score than those taking proctored tests. (Round to two decimal places as needed.) Does the confidence interval support the conclusion of the test? because the confidence interval contains Click to select your answer(s).
A study was done on proctored and nonproctored tests. The results are shown in the table. Assume that the two samples are independent simple random samples selected from normally distributed
populations, and do not assume that the population standard deviations are equal. Complete parts (a) and (b) below.
Proctored Nonproctored
P2
31
32
75.04
82.47
11.09
22.14
a. Use a 0.01 significance level to test the claim that students taking nonproctored tests get a higher mean score than those taking proctored tests.
What are the null and alternative hypotheses?
O A. Ho H1 H2
O B. Ho H1 = Hz
O D. Ho P1 = H2
O C. Ho H1 = H2
H1: P1 <H2
The test statistic, t, is -1.69. (Round to two decimal places as needed)
The P-value is 0.049. (Round to three decimal places as needed.)
State the conclusion for the test.
Coilto rninnt U
There in ouffiniant auidenos to sunnart tha alaies that atudanta taldna nnnBEA otoradtosta not a hiahor mAan aoars than thaoo takiaa pEAotarad tant.
Click to select your answer(s).
3:51 PM
Transcribed Image Text:A study was done on proctored and nonproctored tests. The results are shown in the table. Assume that the two samples are independent simple random samples selected from normally distributed populations, and do not assume that the population standard deviations are equal. Complete parts (a) and (b) below. Proctored Nonproctored P2 31 32 75.04 82.47 11.09 22.14 a. Use a 0.01 significance level to test the claim that students taking nonproctored tests get a higher mean score than those taking proctored tests. What are the null and alternative hypotheses? O A. Ho H1 H2 O B. Ho H1 = Hz O D. Ho P1 = H2 O C. Ho H1 = H2 H1: P1 <H2 The test statistic, t, is -1.69. (Round to two decimal places as needed) The P-value is 0.049. (Round to three decimal places as needed.) State the conclusion for the test. Coilto rninnt U There in ouffiniant auidenos to sunnart tha alaies that atudanta taldna nnnBEA otoradtosta not a hiahor mAan aoars than thaoo takiaa pEAotarad tant. Click to select your answer(s). 3:51 PM
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