To evaluate the effect of using polls during online lectures, a random sample 35 students who registered for an online psychology course were placed in a version of the course with consistent online polling, while the rest of the 500 students participated without polls. At the end of the semester, all students took the same final exam. For the general population of students taking the course without polls, the final exam scores form a normal distribution with a mean of 78 and a standard deviation of 16. The mean score for the sample of students taking the version with polls was 83. Conduct a (two-tailed) hypothesis test using a = .05. Which of the following correctly describes the outcome of the hypothesis test? Reject the null hypothesis because z 2.45, which is in the critical region. Reject the null hypothesis because z= 2.15, which is in the critical region. Fail to reject the null hypothesis because z - 2.45, which is not in the critical region. Fail to reject the null hypothesis because z- 1.85, which is not in the critical region, O Fail to reject the null hypothesis because z= 2.15, which is outside of the critical region. Reject the null hypothesis because because z- 1.85, which is outside of the critical region.

To evaluate the effect of using polls during online lectures, a random sample 35 students who registered for an online psychology course were placed in a version of the course with consistent online polling, while the rest of the 500 students participated without polls. At the end of the semester, all students took the same final exam. For the general population of students taking the course without polls, the final exam scores form a normal distribution with a mean of 78 and a standard deviation of 16. The mean score for the sample of students taking the version with polls was 83. Conduct a (two-tailed) hypothesis test using a = .05. Which of the following correctly describes the outcome of the hypothesis test? Reject the null hypothesis because z 2.45, which is in the critical region. Reject the null hypothesis because z= 2.15, which is in the critical region. Fail to reject the null hypothesis because z - 2.45, which is not in the critical region. Fail to reject the null hypothesis because z- 1.85, which is not in the critical region, O Fail to reject the null hypothesis because z= 2.15, which is outside of the critical region. Reject the null hypothesis because because z- 1.85, which is outside of the critical region.

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Description: To evaluate the effect of using polls during online lectures, a random sample 35 students who registered for an onlinepsychology course were placed in a version of the course with consistent online polling, while the rest of the 500students particip

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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