You are conducting a test of the claim that the row variable and thecolumn variable are dependent in the following contingency table.XY ZA 4222 5B 41 31 15Give all answers rounded to 3 places after the decimal point, if necessary.(a) Enter the expected frequencies below:XYABZ(b) What is the chi-square test-statistic for this data?Test Statistic: x²(c) What is the critical value for this test of independence when using asignificance level of a = 0.025?Critical Value: x²=(d) What is the correct conclusion of this hypothesis test at the 0.025significance level?O There is sufficient evidence to support the claim that the row andcolumn variables are dependent.O There is not sufficient evidence to support the claim that the rowand column variables are dependent.O There is not sufficient evidence to warrant rejection of the claimthat the row and column variables are dependent.O There is sufficient evidence to warrant rejection of the claim thatthe row and column variables are dependent.Remember to give all answers rounded to 3 places after the decimalpoint, if necessary.

Given that X Y Z A 42 22 5 B 41 31 15 Note: According to bartleby experts question…

Answered: (a) Enter the expected frequencies…

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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Test the claim that the mean GPA of night students is smaller than 2.2 at the .10 significance level. Based on a sample of 45 people, the sample mean GPA was 2.16 with a standard deviation of 0.06The test statistic is: (to 2 decimals)The critical value is: (to 2 decimals)
Test the claim that for the population of statistics final exams, the mean score is 7676 using alternative hypothesis that the mean score is different from 76.76. Sample statistics include ?=21,n=21, ?⎯⎯⎯=78,x¯=78, and ?=11.s=11. Use a significance level of ?=0.05.α=0.05. (Assume normally distributed population.) The test statistic is The positive critical value is The negative critical value is The conclusion is A. There is sufficient evidence to reject the claim that the mean score is equal to 76. B. There is not sufficient evidence to reject the claim that the mean score is equal to 76.
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Using the z table, find the critical value (or values) for an α = .09 two-tailed test.
2/8
Using the t-table, find the critical value for a left-tailed test with an α = 0.05 for a sample size of 23.

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(a) Enter the expected frequencies below: X Y A B (b) What is the chi-square test-statistic for this data? Test Statistic: x² = Z (c) What is the critical value for this test of independence when using a significance level of a = 0.025? Critical Value: x² = =