Answer to Question #342153 in Statistics and Probability for Lenny

Question

Given the following GPA for 4 students: 2, 3, 3, 4. Age of students are: 10, 11, 12, 15. There are 10,000 total students. Average GPA: Unknown, Standard Deviation of GPA: 0.02 and it's Normal.

-Find the mean and standard deviation for GPA.

-Calculate a 95% confidence interval for the populations mean GPA.

-Use Correlation formula to find r between GPA and Age.

- Find Regression Line Equation.

- If a student's age is 13, what is the corresponding GPA

Answer 1

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