Hypothesis Testing:The Video Game Satisfaction Rating Case 2
Not what you're looking for?
Recall that very satisfied customers give the XYZ-Box video game system a composite satisfaction rating that is at least 42.
a: Letting mu represent the mean composite satisfaction rating for the XYZ-Box, set up the null and alternative hypotheses needed if we wish to attempt to provide evidence supporting the claim that mu exceeds 42.
The mean and the standard deviation of a sample of n = 65 customer satisfaction ratings are x-bar = 4.295 and s = 2.6424. Use a critical value to test the hypotheses you set up in part a by setting alpha equal to .01. Also, interpret the p-value of .0025 for the test.
Purchase this Solution
Solution Summary
The solution provides step by step method for the calculation of testing of hypothesis. Formula for the calculation and Interpretations of the results are also included. Interactive excel sheet is included. The user can edit the inputs and obtain the complete results for a new set of data.
Purchase this Solution
Free BrainMass Quizzes
Terms and Definitions for Statistics
This quiz covers basic terms and definitions of statistics.
Measures of Central Tendency
Tests knowledge of the three main measures of central tendency, including some simple calculation questions.
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.
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.