Homework Answers
Now , d.f.=(r-1)*(s-1)=(4-1)*(3-1)=3*2=6
Where , r be the number of rows and s be the number of columns.
Since , 
Therefore , the range of the p-value is ,
0.01 < p-value < 0.001 ; From chi-square table
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Find the expected count and the contribution to the chi-square statistic for the Group 1, No) cell in the two-way table below. Yes No Total Group 1 55 43 98 Group 2 140 61 201 Group 3 66 27 93 Total 261 131 392 Round your answer for the excepted count to one decimal place, and your answer for the contribution to the chi-square statistic to three decimal places. Expected count= 32.75 x 29 contribution to the chi-square statistic=
Calculate the test
statistic.
Chapter 12. Chi-Square Test Saved Help Save & Exit Su Check my w Given the following contingency table, conduct a test for Independence at the 5% significance level. (You may find It useful to reference the appropriate table: chi-square table or F table) Variable A points Variable B 36 35 31 51 eBook a. Choose the null and alternative hypotheses. Hint Ho: The two variables are independent.; HA: The two variables are dependent. O Ho: The...
А 10 40 B 20 30 у b The contingency table shown to the right gives a cross-classification of a random sample of values for two variables, x and y, of a population a. Find the expected frequencies. Note: You will first need to compute the row totals, column totals, and grand total. b. Determine the value of the chi-square statistic. c. Decide at the 5% significance level whether the data provide sufficient evidence to conclude that the two variables...
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