• 0
Votes
name

A PHP Error was encountered

Severity: Warning

Message: Undefined array key "userid"

Filename: views/question.php

Line Number: 212

Backtrace:

File: /home/statpmkj/public_html/application/views/question.php
Line: 212
Function: _error_handler

File: /home/statpmkj/public_html/application/controllers/Questions.php
Line: 416
Function: view

File: /home/statpmkj/public_html/index.php
Line: 315
Function: require_once

The following contingency table shows the distribution of grades earned by students taking a midterm exam in an MBA class, categorized by the number of hours the students spent studying for the exam. Complete parts a. and b. below.

a. Using a = 0.025, perform a chi-square test to determine if a student's grade on the exam and the hours spent studying for it are independent of one another.

  A B C
Less than 3 hours 5 16 10
3-5 hours 12 16 4
More than 5 hours 23 13 4