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Treatment Placebo H2 A study was done using a treatment group and a placebo group. 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. Use a 0.01 significance level for both parts. 25 33 2.38 2.65 0.56 0.96 a. Test the claim that the two samples are from populations with the same mean. What are the null and alternative hypotheses? O B. Ho: H H2 O A. Ho H1 = 42 H: 1> P2 OC. Ho: H1

Treatment Placebo H2 A study was done using a treatment group and a placebo group. 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. Use a 0.01 significance level for both parts. 25 33 2.38 2.65 0.56 0.96 a. Test the claim that the two samples are from populations with the same mean. What are the null and alternative hypotheses? O B. Ho: H H2 O A. Ho H1 = 42 H: 1> P2 OC. Ho: H1

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.3: Measures Of Spread
Problem 1GP
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9.2.6-T Question Help Treatment Placebo H2 A study was done using a treatment group and a placebo group. 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. Use a 0.01 significance level for both parts. 25 33 2.38 2.65 0.96 0.56 a. Test the claim that the two samples are from populations with the same mean. What are the null and alternative hypotheses? O A. Ho: H1=H2 H1: 41> H2 O B. Ho: H1# H2 H1: H1<H2 O C. Ho: H1 <H2 D. Ho: H1 = H2 H1: 412 H2 H1: H1 # H2 The test statistic, t, is (Round to two decimal places as needed.)
Transcribed Image Text:9.2.6-T Question Help Treatment Placebo H2 A study was done using a treatment group and a placebo group. 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. Use a 0.01 significance level for both parts. 25 33 2.38 2.65 0.96 0.56 a. Test the claim that the two samples are from populations with the same mean. What are the null and alternative hypotheses? O A. Ho: H1=H2 H1: 41> H2 O B. Ho: H1# H2 H1: H1<H2 O C. Ho: H1 <H2 D. Ho: H1 = H2 H1: 412 H2 H1: H1 # H2 The test statistic, t, is (Round to two decimal places as needed.)
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