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(d) Carry out an appropriate hypothesis test at a = 0.05 to see whether the proportion of houscholds in Edmonton with income under $50,000 is now higher than 22.92% (which is the rounded percentage of households with income under S50,000 in the 2016 census). State the null and alternative hypotheses. Report the value of the appropriate test statistic, the distribution of the test statistic under the null hypothesis, and the P-value of the test to answer the question. State your conclusion.

(d) Carry out an appropriate hypothesis test at a = 0.05 to see whether the proportion of houscholds in Edmonton with income under $50,000 is now higher than 22.92% (which is the rounded percentage of households with income under S50,000 in the 2016 census). State the null and alternative hypotheses. Report the value of the appropriate test statistic, the distribution of the test statistic under the null hypothesis, and the P-value of the test to answer the question. State your conclusion.

MATLAB: An Introduction with Applications
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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Contingency table results: Contingency table results: Rows: Edmonton Group Columns: None Rows: Calgary Group Columns: None Cell format Cell format Count Count (Column percent) (Column percent) Edmonton Sum Total Calgary Sum Total 1 115100 115100 1 109375 109375 (22.92%) (22.92%) (21.05%) (21.05%) 151565 151565 2 151590 151590 (30.18%) (30.18%) (29.17%) (29.17%) 3 235485 235485 3 258720 258720 (46.9%) (46.9%) (49.78%) (49.78%) Total 502150 502150 Total 519685 519685 (100%) (1006) (100%) (100%) Chi-Square test: Chi-Square test: Statistic DF Value P-value Statistic DF Value P-value Chi-square o 5.3412283e-25 1 Chi-square o 1.7237062e-25 1
Transcribed Image Text:Contingency table results: Contingency table results: Rows: Edmonton Group Columns: None Rows: Calgary Group Columns: None Cell format Cell format Count Count (Column percent) (Column percent) Edmonton Sum Total Calgary Sum Total 1 115100 115100 1 109375 109375 (22.92%) (22.92%) (21.05%) (21.05%) 151565 151565 2 151590 151590 (30.18%) (30.18%) (29.17%) (29.17%) 3 235485 235485 3 258720 258720 (46.9%) (46.9%) (49.78%) (49.78%) Total 502150 502150 Total 519685 519685 (100%) (1006) (100%) (100%) Chi-Square test: Chi-Square test: Statistic DF Value P-value Statistic DF Value P-value Chi-square o 5.3412283e-25 1 Chi-square o 1.7237062e-25 1
3. Using the file lab3b-sample.txt, create frequency tables (showing both frequency and relative frequency) to summarize the distribution of income groups for houscholds in Edmonton. (d) Carry out an appropriate hypothesis test at a = 0.05 to see whether the proportion of houscholds in Edmonton with income under $50,000 is now higher than 22.92% (which is the rounded percentage of households with income under $50,000 in the 2016 census). State the null and alternative hypotheses. Report the value of the appropriate test statistic, the distribution of the test statistic under the null hypothesis, and the P-value of the test to answer the question. State your conclusion.
Transcribed Image Text:3. Using the file lab3b-sample.txt, create frequency tables (showing both frequency and relative frequency) to summarize the distribution of income groups for houscholds in Edmonton. (d) Carry out an appropriate hypothesis test at a = 0.05 to see whether the proportion of houscholds in Edmonton with income under $50,000 is now higher than 22.92% (which is the rounded percentage of households with income under $50,000 in the 2016 census). State the null and alternative hypotheses. Report the value of the appropriate test statistic, the distribution of the test statistic under the null hypothesis, and the P-value of the test to answer the question. State your conclusion.
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