Use the SPSS data file named Week 4 assignments ANOVA bg one_way PART II.sav and answer the questions below.

1. Is there a significant difference in the Staff Annual Salaries between the schools? Use the IV named School and the DV named Annual_salaries and run a one-way between group ANOVA. Then run a Tukey HSD post hoc test and write up all of the results in APA formatting. Please address the assumptions and mention the effect size and power.

2. Is there a significant difference in the number of Employees between the hospitals? Use the IV named Hospital and the DV named Number_employees and run a one-way between group ANOVA. Then run a Tukey HSD post hoc test and write up all of the results in APA formatting. Please address the assumptions and mention the effect size and power.

3. An investigator is interested in the effects of a new drug for Alzheimer’s disease on cognitive function. She recruits 24 subjects with a diagnosis of early-stage Alzheimer’s disease for her study. Six subjects are randomly assigned to a group that gets a high dosage of the drug. Six subjects are assigned to a group that gets a moderate dosage of the drug. Six subjects are assigned to a group that a low dosage of the drug. The remaining six subjects are assigned to a placebo group that does not get the drug. Five weeks later she tests all 24 subjects on a variety of cognitive tests. Higher scores reflect higher cognitive skill levels. Assuming that the overall effect of the drug is significant, make the following three planned comparisons for her. (Use the IV named Dosage_strength and the DV named Cognitive_test_scores.)

a) She predicts that subjects getting the drug will perform significantly better than subjects not getting the drug (the placebo group).

b) She predicts that subjects getting a moderate dose of the drug will perform significantly better than subjects getting a low dose of the drug.

c) She predicts that subjects getting a high dose of the drug will perform significantly better than subjects getting a moderate dose of the drug.

Please write a paragraph in APA formatting that summarizes the conclusions that the investigator is entitled to make.