P Take a Test - Brittany Wyche X + mathxl.com/Student/PlayerTest.aspx?testld=229645216¢erwin=yes MATH 251 901 7A SU21 - Statistics for Science, CCP Dis crn52513 Brittany Wyche & | 07/01/21 11:42 AM Test: Final Exam (21quez, 200pts) {su2'20} Time Remaining: 01:43:34 Submit Test This Question: 18 pts 19 of 21 (1 complete) This Test: 200 pts possible Treatment | Placebo H1 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 25 40 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. 2.3 2.66 0.58 0.95 a. Test the claim that the two samples are from populations with the same mean. What are the null and alternative hypotheses? OA. HO: H1 # H2 O B. HO: H1 = H2 Hy: H1 =H2 Hy : H1 > H2 O C. Ho: H1 =H2 OD. HO: M1 = H2 Hy: H1 2H2 H1: H1 # H2 The test statistic, t, is . (Round to two decimal places as needed.) The P-value is . (Round to three decimal places as needed.) State the conclusion for the test. () A. 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. X Vi V More Click to select your answer(s)