Sociologists and physicians investigated the relationship between geographic location and depression. A sample of 60 individuals was selected; 20 were residents of Florida, 20 were residents of New York, and 20 were residents of North Carolina. Each of individuals sampled was given a standardized test to measure depression. The data is provided in a file named medical.xlsx; higher test scores indicate higher levels of depression. a. Use Excel to do analysis of variance on the data set. State the null hypothesis and alternative hypothesis. What is your conclusion? α = 0.05. b. Use LSD procedure to find which group is different.
Sociologists and physicians investigated the relationship between geographic location and depression. A sample of
60 individuals was selected; 20 were residents of Florida, 20 were residents of New York, and 20 were residents of North Carolina. Each of individuals sampled was given a standardized test to measure depression. The data is provided in a file named medical.xlsx; higher test scores indicate higher levels of depression.
a. Use Excel to do analysis of variance on the data set. State the null hypothesis and alternative hypothesis. What is your conclusion? α = 0.05.
b. Use LSD procedure to find which group is different.
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