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Descriptive Statistics, Confidence Intervals, & Hypothesis Test

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I have attached a sample test completed answer sheet, as well as a completed test, Module 4a - Form E. Please review Module 4a Form E, taking into consideration the sample test answers. I am not sure about the null hypothesis in #2 & #3. I don't know the alpha value for #3.

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https://brainmass.com/statistics/descriptive-statistics/descriptive-statistics-confidence-intervals-hypothesis-test-21645

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Solution Summary

The following show how to calculate several operations including providing descriptive statistics, calculating confidence intervals, and performing hypothesis tests. Two examples of each are provided in the problem. The work in provided in a word document along with several formulas and details. Some work is cut and pasted from SPSS output as well.

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