Answer all questions please

Chapter 11 1. An investigator wants to know if females on a certain island spend less hours on the phone each month than males. Ideally, she'd ask all 2,000 inhabitants but this takes too much time. So, she samples 5 males and 6 females and asks them to report the hours of phone used last month. The data are shown below. Female (h): 2, 4, 9, 7, 6, 2 Male (h): 4, 11, 3, 10, 7 a. Identify the populations, null hypothesis, and experimental hypothesis. b. Find the critical tvalue (a = .01). c. Calculate the values for pooled variance, standard error, and the observed 1'- value. d. State your decision and interpret the results. Describe the results in APA format. e. Calculate the 95% Confidence Interval for an independent samples testl f. Calculate Cohen's d as a measure of effect size and interpret the effect