80.2K

Verified Solution

Link Copied!

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 05 significance level for both parts a Test the claim that the two samples are from populations with the same mean What are the null and alternative hypotheses OA Ho Hy 2 H H H OC Ho H H H H H The test statistic t is 1 90 Round to two decimal places as needed The P value is 0 063 Round to three decimal places as needed State the conclusion for the test GELED b Construct a confidence interval suitable for testing the claim that the two samples are from populations with the same mean 14 27 4 B Ho H H H H H OD Ho H H H H1 H A Fail to reject the null hypothesis There is sufficient evidence to warrant rejection of the claim that the two samples are from populations with the same mean OB Reject the null hypothesis There is not sufficient evidence to warrant rejection of the claim that the two samples are from populations with the same mean C Reject the null hypothesis There is sufficient evidence to warrant rejection of the claim that the two samples are from populations with the same mean D Fail to reject the null hypothesis There is not sufficient evidence to warrant rejection of the claim that the two samples are from populations with the same mean 3CX Treatment Place H 35 2 31 0 94 TON H 37 2 66 0 57

Answer & Explanation Solved by verified expert

See Answer