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Correlation and linear regression

Assignment:

1.Anaylsis of Variance

2.Correlation and Linear Regression

3. Humphreys, P. (2013). Data analysis: Models or techniques? Foundations of Science, 18(3), 579-581. (use this link and write a small paragraph

4. Franke, T. M., Ho, T., & Christie, C. A. (2012). The chi-square test: Often used and more often misinterpreted. American Journal of Evaluation, 33(3), 448-458. (use this link and write a small paragraph)

5. McHugh, M. L. (2013). The chi-square test of independence. Biochemia Medica, 23(2), 143-149.

(use this link and write a smal paragraph)

6. Answer these questions:

- When is it appropriate to apply the z-test as the inferential technique and why?
- When is it appropriate to apply the t-test as the inferential technique and why?
- When is it appropriate to apply the z-test for proportions?

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## Q : Discuss how the mean median and mode

An average is an attempt to summarize a collection of data into just one number.