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Review Worksheet week 6
Use the class notes posted in the course materials area of the OLS and information from our workshops.
1) In a particular Chi Square goodness of fit test there are 4 categories and 200 observations. Use the .05 significance level.
a) How many degrees of freedom are there?
b) What is the critical value of Chi Square (you will need to look at the table).
2) The null hypothesis and the alternate are:
Ho: The cell categories are equal.
Ha: The cell categories are not equal.
a) State the decision rule, using the .05 significance level.
b) Compute the value of Chi Square.
c) What is your decision regarding Ho?
d) Give a real life example of when you'd use Chi Square.
The solution provides step by step method for the calculation of chi square test for association, correlation ad regression analysis. 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.