Study 2. A camp counselor wanted to see whether her summer stats students were overly optimistic about their future research salaries. She knew that the distribution of starting research salaries for students who graduated from the camp's summer program was normally distributed with a mean of $36,000 a year, or u = $3,000 a month. The counselor obtained a random sample of 41 students enrolled in the summer program for her study. She interviewed each student, one at a time, using an interview that obscured the purpose of interview (i.e., to obtain their expected salaries). The mean expected starting salaries for the 41 students was $4,200 per month (SD = 980). Previous research (cg, Hoobastank, 2007) suggested that students would be overly optimistic in their estimates, and so the counselor chose to do a -tailed test. She also chose an alpha of .05. 1. What is the research hypothesis? 2. What is the null hypothesis? 3. What type of ttest would you use to see if there is a signicant difference? 4. How many tails will you be using in your calculation (Hint: think about the researcher 's prediction). Following the appropriate steps, compute the t-test. 5. {critical (0. = .05): 6. t 7 value (elf): 7. p (circle): 8. d: 9. Describe the results of the study in APA style (Hint; You will need to calculate the M and SD for each group to be able to complete this step)