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 H2 n 32 35 74.73 81.73 10.12 22.49 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 H: H1 > H2 B. Họ: H1H2 OC. Ho: H1 = H2 H,: H1 H2 O D. Họ:Hy #H2 H,: H

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1) Provide test statistic (round to 3 decimal places) 2) Provide P Value (round to 3 decimal places) 3) State conclusion 4) Construct a confidence interval that is suitable for testing that the students taking non-proctored tests have a higher mean score (u1-u2) 5) Does the interval support the test?
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
H2
32
35
74.73
81.73
10.12
22.49
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?
OA. Ho: H1 = 2
H: H1> H2
VB. Ho: P1=#2
O D. Ho:Hy #H2
OC. Ho: H1 = H2
H: H1 # H2
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 H2 32 35 74.73 81.73 10.12 22.49 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? OA. Ho: H1 = 2 H: H1> H2 VB. Ho: P1=#2 O D. Ho:Hy #H2 OC. Ho: H1 = H2 H: H1 # H2
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