The table to the right contains observed values and expected values in parentheses for two categorical variables, X and Y, where variable X has three categories and variable Y has two categories, Use the table to complete parts (a) and (b) below. X, X2 Y, 30 42 53 (33.19) (43.08)(48.73) 17 19 (13.81)(17.92) (20.27) Y2 16 (a) Compute the value of the chi-square test statistic. Y = (Round to three decimal places as needed.) (b) Test the hypothesis that X and Y are independent at the a = 0.001 level of significance. O A. Ho: The Y category and X category have equal proportions. H,: The proportions are not equal. O B. Ho: The Y category and X category are dependent. H,: The Y category and X category are independent. OC. Ho: The Y category and X category are independent. H,: The Y category and X category are dependent. O D. Ho: Hx=E, and Hy = Ey H: H, #E, or Hy#Ey What is the P-value? P-value = (Round to three decimal places as needed.) Should the null hypothesis be rejected? O A. Yes, reject Ho. There is not sufficient evidence at the a= 0.01 level of significance to conclude that X and Y are dependent because the P-value

The table to the right contains observed values and expected values in parentheses for two categorical variables, X and Y, where variable X has three categories and variable Y has two categories, Use the table to complete parts (a) and (b) below. X, X2 Y, 30 42 53 (33.19) (43.08)(48.73) 17 19 (13.81)(17.92) (20.27) Y2 16 (a) Compute the value of the chi-square test statistic. Y = (Round to three decimal places as needed.) (b) Test the hypothesis that X and Y are independent at the a = 0.001 level of significance. O A. Ho: The Y category and X category have equal proportions. H,: The proportions are not equal. O B. Ho: The Y category and X category are dependent. H,: The Y category and X category are independent. OC. Ho: The Y category and X category are independent. H,: The Y category and X category are dependent. O D. Ho: Hx=E, and Hy = Ey H: H, #E, or Hy#Ey What is the P-value? P-value = (Round to three decimal places as needed.) Should the null hypothesis be rejected? O A. Yes, reject Ho. There is not sufficient evidence at the a= 0.01 level of significance to conclude that X and Y are dependent because the P-value

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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