Independent sample t test
Not what you're looking for?
D) Silver Gym's aerobic class grew so large that the class had to be split in half and offered on two different nights. Silver also hired a new aerobic leader to handle the Tuesday night class, whereas an existing staff member continued to handle the Thursday night class. Concerned about customer satisfaction with the new leader, Silver Gym's management decided to secure a leader-approval rating from each class after four weeks. Results are shown in the table below:
Tuesday Thursday
Class Size
Mean Approval Rating
Standard Deviation 38
87.3
7.4 41
89.7
6.3
Did the new leader of the Tuesday night class receive a lower approval rating than the leader of the Thursday night class? Set up and test = 0.05. at  as your hypotheses.
Purchase this Solution
Solution Summary
The solution provides step by step method for the calculation of test statistic for independent sample t test . Formula for the calculation and Interpretations of the results are also included.
Solution Preview
Please see the attachments.
Answer
H0: There is no significant difference in the mean approval rating (µ1=µ2)
H1: Tuesday night class receive a lower approval rating than the leader of the Thursday night class (µ1<µ2).
The test statistic used is independent sample t test with where
Decision ...
Purchase this Solution
Free BrainMass Quizzes
Measures of Central Tendency
This quiz evaluates the students understanding of the measures of central tendency seen in statistics. This quiz is specifically designed to incorporate the measures of central tendency as they relate to psychological research.
Terms and Definitions for Statistics
This quiz covers basic terms and definitions of statistics.
Know Your Statistical Concepts
Each question is a choice-summary multiple choice question that presents you with a statistical concept and then 4 numbered statements. You must decide which (if any) of the numbered statements is/are true as they relate to the statistical concept.
Measures of Central Tendency
Tests knowledge of the three main measures of central tendency, including some simple calculation questions.