Use the following contingency table to complete (a) and (b) below. A B C Total 1 15 30 45 90 2 40 50 60 150 Total 55 80 105 240 Question content area bottom Part 1 a. Compute the expected frequencies for each cell. A B C 1 20.625 30 39.375 2 34.375 50 65.625 (Type integers or decimals. Do not round.) Part 2 b. Compute χ2STAT. Is it significant at α=0.005? Set up the null and alternative hypotheses to test. Choose the correct answer below. B.H0:πA=πB=πC H1:Not all πj are equal (where j=A,B, C) This answer is correct. Part 3 Compute χ2STAT. χ2STAT= (Round to three decimal places as needed.)

Use the following contingency table to complete (a) and (b) below. A B C Total 1 15 30 45 90 2 40 50 60 150 Total 55 80 105 240 Question content area bottom Part 1 a. Compute the expected frequencies for each cell. A B C 1 20.625 30 39.375 2 34.375 50 65.625 (Type integers or decimals. Do not round.) Part 2 b. Compute χ2STAT. Is it significant at α=0.005? Set up the null and alternative hypotheses to test. Choose the correct answer below. B.H0:πA=πB=πC H1:Not all πj are equal (where j=A,B, C) This answer is correct. Part 3 Compute χ2STAT. χ2STAT= (Round to three decimal places as needed.)

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018

18th Edition

ISBN:9780079039897

Author:Carter

Publisher:Carter

Chapter10: Statistics

Section10.6: Summarizing Categorical Data

Problem 21PPS

See similar textbooks

Question content area bottom

Part 1

a. Compute the expected frequencies for each cell.

	A	B	C
1	20.625	30	39.375
2	34.375	50	65.625
	(Type integers or decimals. Do not round.)

Part 2

b. Compute

χ2STAT.

Is it significant at

α=0.005?

Set up the null and alternative hypotheses to test. Choose the correct answer below.

B.H0:πA=πB=πC H1:Not all πj are equal (where j=A,B, C)

This answer is correct.

Part 3

Compute χ2STAT.

χ2STAT=

(Round to three decimal places as needed.)

Definition Definition Visual representation of the relationship between two or more categorical variables. A contingency table is a categorical version of the scatterplot, which is used to visualize the linear relationship between two variables.

Expert Solution