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A study of violence and peer acceptance reported descriptive results for male and female students. The average age for 15 male students was 17.23 with

  1. A study of violence and peer acceptance reported descriptive results for male and female students. The average age for 15 male students was 17.23 with a standard deviation of 3.01. Construct a 99% confidence interval for the average age of male students. What is the critical value for this confidence interval?

a. 2.977 b. 2.947 c. 2.624 d. 2.145

  1. A study of violence and peer acceptance reported descriptive results for male and female students. The average age for 15 male students was 17.23 with a standard deviation of 3.01. Construct a 99% confidence interval for the average age of male students. What is the upper bound for this confidence interval?

a. 19.05 b. 19.23 c. 15.23 d. 19.54

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