Answered step by step
Verified Expert Solution
Link Copied!

Question

1 Approved Answer

The average scores in a pre-final examination scored by students in the previous year was 63. A tutor, after conducting the weekly tests, wishes to

The average scores in a pre-final examination scored by students in the previous year was 63. A tutor, after conducting the weekly tests, wishes to check whether that average has increased this year. For a sample of 70 students, the mean score was 65 with a standard deviation of 15. You can reject the null hypothesis if the critical value is greater than 1.282. You calculate the critical value to be 1.12. Which of the following accurately characterize your conclusion?

You can accept the null hypothesis and do not accept alternate and conclude that the average test scores have increased.

You can accept the null hypothesis and reject alternate and conclude that the average test scores have not increased.

You can not reject the null hypothesis and accept alternate and conclude that the average test scores have increased.

You can not reject the null hypothesis; do not accept the alternate hypothesis and do not conclude that the average test scores have increased.

You can not reject the null hypothesis; do not accept alternate and conclude that the average test scores have increased.

Step by Step Solution

There are 3 Steps involved in it

Step: 1

blur-text-image

Get Instant Access to Expert-Tailored Solutions

See step-by-step solutions with expert insights and AI powered tools for academic success

Step: 2

blur-text-image

Step: 3

blur-text-image

Ace Your Homework with AI

Get the answers you need in no time with our AI-driven, step-by-step assistance

Get Started

Recommended Textbook for

Multiple Time Scale Dynamics

Authors: Christian Kuehn

1st Edition

3319123165, 9783319123165

More Books

Students also viewed these Mathematics questions