Question: The table in the next column contains observed values and expected values in parentheses for two categorical variables, X and Y, where variable X has

The table in the next column 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.

X3 X2 74 (80.43) X1 34 (39.46) 18 (12.54) 87 (75.12) 12 (23.88) и 32 (25.57)

(a) Compute the value of the chi-square test statistic.
(b) Test the hypothesis that X and Y are independent at the a = 0.05 level of significance.

X3 X2 74 (80.43) X1 34 (39.46) 18 (12.54) 87 (75.12) 12 (23.88) 32 (25.57)

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