A tutor promises to improve GMAT scores of students by more than 56 points after three lessons. To see if this is true, the tutor takes a sample of 49 students' test scores after and before they receivedtutoring. The mean difference was 59 points better after tutoring, with a standard deviation of the differences equal to 14 points. Let un denote the mean of the difference: score after tutoring minus scorebefore tutoring. Which of the following is the correct value of the test statistic?Multiple Cholcez = 1.4643z = 1.5800t48 = 1.4643t48 = 1.5000

Given : sample size,n = 49 Degrees of freedom = n-1 = 48 Mean difference , Dˉ=59 - 56 = 3 sd = 14

Answered: A tutor promises to improve GMAT scores…

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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