please answer all parts

A studs.I 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 disttibuted populations, and do not assume that the population standard deviations are equal. Complete parts (a) and lb) below. Use a 0.05 signicance level for both parts. a. Test the claim that the two samples are from populations with the same mean. What are the null and altemative hypotheses? OA. HBIIJ1=|12 OB. HD'_|_i.lv:j.|2 H1't'1'll2 \"(Malia OC- Ho-l-H'l-'e 00- Ho-l-HZPQ H13|J1P2 The test statistic, t, is . (Round to two decimal places as needed.) The P-vatue is . [Round to three decimal places as needed.) State the conclusion for the test. 0 A. Fail to reject the null hypothesis. There is sufcient evidence to warrant rejection of the claim that the two samples are fmm populations with the same mean. 0 B. Fail to reject the null hypothesis. There is not sufcient evidence to warrant rejection of the claim that the two samples are from populations with the same mean. 0 C. Reject the null hypothesis. There is sufcient evidence to warrant rejection of the claim that the two samples are from populations with the same mean. 0 D. Reject the null hypothesis. There is not sufcient evidence to warrant rejection of the claim that the two samples are from populations with the same mean. Treatment Placebo I1 P1 P2 n 23 32 i 2. 36 2.61 s 0.95 0.5