1. Compare the different Genders of subjects in the Psych_Data.xlsx data set to determine if there is a statistically significant difference in the mean Suicide Risk Levels (suicidal_inv) between the different gender groups. Be sure to state the type of test, state the Ho and Ha, include all relevant Excel results and plots, and write final conclusions for the full results of the test in context. Be sure that your final conclusions are written in common terms for an average person to understand.

(a) What type of hypothesis test will you run?

2. Compare the different Socioeconomic Levels (ses_level) of the students in the Psych_Data.xlsx dataset to determine if there is a statistically significant difference in the mean Anxiety Scores (anx_score) between the different SES levels. Be sure to state the type of test, state the Ho and Ha, include all relevant Excel results and plots, and write final conclusions for the full results of the test in context. Be sure that your final conclusions are written in common terms for an average person to understand.

(a) What type of hypothesis test will you run?

From the Psych_Data.xlsx dataset, use the Before Therapy (pre_ther) and After Therapy (post_ther) scores to answer the question: "Does a short-term integrated therapy method lead to an improvement in one's mental health status?" Assume the (pre_ther) and (post_ther) scores are appropriate measures of one's mental health state and the higher the score, the better one's overall mental health.

(a) What type of hypothesis test will you run?

From the Psych_Data.xlsx dataset, use the ethnicity and therapy_pref variables to determine whether there is evidence of a significant association between ethnicity and preferred therapy method (individual, group, mixed).

(a) What type of hypothesis test will you run?