2. For a 90% confidence interval between the difference of 2 independent proportions (home runs perat bat), the following data was found:Red SoxGiantsx, home runs167154n, at bats32503455a) What is the critical value 2/2b)What is the confidence interval?c)Find the test-statistic:

It is given that the level of confidence is 0.90.

Answered: 2. For a 90% confidence interval…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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3. 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, StandardDeviation of GPA: 0.02 and it’s Normal.a. Find the mean and standard deviation for GPA.b. Calculate a 95% confidence interval for the populations mean GPA.c. Use Correlation formula to find r between GPA and Age.d. Find Regression Line Equation.e. If a student’s age is 13, what is the corresponding GPA?
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2. For a 90% confidence interval between the difference of 2 independent proportions (home runs per at bat), the following data was found: Red Sox Giants x, home runs 167 154 n, at bats 3250 3455 a) What is the critical value 2/2 b) What is the confidence interval? c) Find the test-statistic: