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# Hypothesis Testing & ANOVA - Real World Example

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1. After reading about how the ANOVA is used, and the value many researchers place on it, describe a situation, preferably from your work place, where this style of testing would be or could have been appropriate.

2. The Chi-square procedure has many uses in our daily living. Look around your organization or in your community and find a good practical use for this very powerful technique.

##### Solution Summary

Hypothesis testing and ANOVA tests are used for real world examples. A complete, neat and step-by-step solution is provided in the attached file.

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(1) ANOVA

The purpose of conducting ANOVA is to see if there is any difference between two or more groups on some variable. ANOVA is a general technique that can be used to test the hypothesis that the means among two or more groups are equal, under the assumption that the sampled populations are normally distributed.
A one-way analysis of variance requires that the independent variable specify groups or categories and the dependent variable be interval level.

ANOVA with 3 Samples: (A Business Example)

a. Write a brief statement of purpose of the study

Three different aisle locations were considered: Front, Middle, and Rear. A random sample of 18 stores was selected, with 6 stores randomly assigned to each aisle location. At the end of a one month trial period, the sales volumes (in thousands of dollars) of the product in each store were recorded to see if there is a significant difference in the mean sales among the various aisle locations.
b. Define the population
The stores of a particular retail-chain company in a big city

c. State how the sample was selected

18 stores were randomly selected from the retail chain in a big city and 6 each were randomly assigned to the aisle locations.
d. What a value did ...

##### 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.

##### Measures of Central Tendency

Tests knowledge of the three main measures of central tendency, including some simple calculation questions.