Please show all work, cannot use excel chart. Can it be very detailed please? In a study designed to examine the effectiveness of a social skills program for children, 20 children wererandomly assigned to one of two groups: a social skills training group or a control group. After 6 weeks, thesocial skills of participants in each group were measured and compared. The data revealed the following resultsSocial Skills TrainingControln = 10M = 7.5SS = 116n = 10M = 12SS = 108A. State the null and alternate hypothesesB. Determine whether the data are sufficient to conclude that a significant difference exists between thegroups using a two-tailed test with a = .05C. Compute Cohen's d and explain what this number tells youD. Construct a 90% confidence interval to estimate the size of the mean difference. Explain what theconfidence interval tells you.

Since you have posted a question with multiple sub-parts, we will solve first three sub-parts for…

In a study designed to examine the effectiveness of a social skills program for children, 20 children were randomly assigned to one of two groups: a social skills training group or a control group. After 6 weeks, the social skills of participants in each group were measured and compared. The data revealed the following results Social Skills Training Control n = 10 n= 10 M = 7.5 SS = 116 M = 12 SS = 108 A. State the null and alternate hypotheses B. Determine whether the data are sufficient to conclude that a significant difference exists between the groups using a two-tailed test with a = .05 C. Compute Cohen's d and explain what this number tells you