Groups A & B are asked to answer a survey question on a scale of 1-5 where
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Question:
Groups A & B are asked to answer a survey question on a scale of 1-5 where 5 = strongly agree and 1 = strongly disagree
The results are the following
A | B |
4 | 2 |
2 | 3 |
2 | 4 |
Q1. Find the Sample mean and sample standard deviation of each group.
Q2 Test that the variances are equal across the two samples using the ratio of the variance of sample A divided by the variance of sample B.
Q3. Formulate a hypothesis where the sample standard deviation of both groups are equal, calculate test statistic and conclude
Q4. Test that the means are equal using the results of Q2 to decide the form of your test.
test at a 5% significance level, compute the test statistic and conclude
Related Book For
Analyzing Data And Making Decisions Statistics For Business Microsoft Excel 2010 Updated
ISBN: 9780132924962
2nd Edition
Authors: Judith Skuce
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