Consider the following contingency table that is based on a sample survey. Column 1 Column 2 Column 3 Row 1 138 89 79 Row 2 93 50 89 Row 3 122 78 113 a. Write the null and alternative hypotheses for a test of independence for this table. Ho: Rows and columns are independent H: Row and columns are dependent b. Calculate the expected frequencies for all cells assuming that the null hypothesis is true. Round your answers to three decimal places, where required. Column 1 Column 2 Column 3 Total Row 1 126.931 78.028 101.041 306 Row 2 96.235 J232 59.159 76.606 Row 3 129.834 79.813 103.353 313 Total 353 217 281 851 c. For a = 0.01, find the critical value of x. Specify the rejection and nonrejection regions on the chi-square distribution curve.
Consider the following contingency table that is based on a sample survey. Column 1 Column 2 Column 3 Row 1 138 89 79 Row 2 93 50 89 Row 3 122 78 113 a. Write the null and alternative hypotheses for a test of independence for this table. Ho: Rows and columns are independent H: Row and columns are dependent b. Calculate the expected frequencies for all cells assuming that the null hypothesis is true. Round your answers to three decimal places, where required. Column 1 Column 2 Column 3 Total Row 1 126.931 78.028 101.041 306 Row 2 96.235 J232 59.159 76.606 Row 3 129.834 79.813 103.353 313 Total 353 217 281 851 c. For a = 0.01, find the critical value of x. Specify the rejection and nonrejection regions on the chi-square distribution curve.
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
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