Use the calculator provided to solve the following problems.
?Suppose that X2 follows a chi-square distribution with 7 degrees of freedom. Compute P (X2 <=5). Round your answer to at least three decimal places.
?Suppose again that X2 follows a chi-square distribution with 7 degrees of freedom. Find k such that P (X2 > k) = 0.1. Round your answer to at least two decimal places.
?Find the median of the chi-square distribution with 7 degrees of freedom. Round your answer to at least two decimal places.
See attached file.© BrainMass Inc. brainmass.com October 25, 2018, 3:12 am ad1c9bdddf
The solution provides step-by-step method for the calculation of probability, raw score and median using Chi-square distribution. Graph of the distribution is also included.
Chi Square Distribution for Two Independent Variables
1. When and how do you use a chi-square distribution to test if two variables are independent? Also, provide an example from your filed showing how you might use a contingency table for expected frequencies in your work.
2. How do you use the chi-square distribution to test if a frequency distribution fits a claimed distribution? Provide an example from your work showing the steps of the chi-square Goodness-of-Fit Test.View Full Posting Details