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Posted: March 17th, 2023

Angry moods study (statistics) | Mathematics homework help

Question #1

Suppose in the population, the Anger-Out score for men is two points higher than it is for women. The population variances for men and women are both 20. Assume the Anger-Out scores for both genders are normally distributed. Given this information about the population parameters:

(a) What is the mean of the sampling distribution of the difference between means?

(b) What is the standard error of the difference between means?

Question #2

Calculate the 95% confidence interval for the difference between the mean Anger-In score for the athletes and non-athletes. What can you conclude?

Question #3

Is there a difference in how much males and females use aggressive behavior to improve an angry mood? For the “Anger-Out” scores, compare the means for each gender.

Note regarding the attached spreadsheet: the first worksheet is the data. The second worksheet includes a description of the study and a description of the variables.

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