Please explain why null hypothesis is being rejected and why answer A is correct. Also please explain the hypothesis and help me understand the test stat.

Treatment Placebo 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 H H1 H2 independent simple random samples selected from normally distributed populations, and do not assume that the population standard n 31 38 deviations are equal. Complete all parts below. Use a 0.10 significance level. X 2.31 2.69 S 0.64 0.95 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 O B. Ho H1 * H2 H1: H1> H2 H1 H1