Question

It is claimed that the variance the monthly households was selected and their monthly incomes are given 120, 130, 110, 100, 105, 95, 140, 115, 125. Using a significance level of $\alpha = 0.05$ test the claim that the population variance is greater than ($s^2 = 215.29$). a) State null and alternative hypothesis. b) Determine appropriate test statistic and critical value. Graph draw roughly. c) Make a decision.

Name: it is claimed that the variance the monthly households was selected and their monthly incomes are given 120 130 110 100 105 95 140 115 125 using a significance level of alpha 005 test the cl 92193
Uploaded: 2023-05-18T09:14:24-08:00
Duration: 1 min 8 s
Channel: Adi S
Description: it is claimed that the variance the monthly households was selected and their monthly incomes are given 120 130 110 100 105 95 140 115 125 using a significance level of alpha 005 test the cl 92193

          It is claimed that the variance the monthly households was selected and their monthly incomes are given 120, 130, 110, 100, 105, 95, 140, 115, 125.
Using a significance level of $\alpha = 0.05$ test the claim that the population variance is greater than ($s^2 = 215.29$).

a) State null and alternative hypothesis.
b) Determine appropriate test statistic and critical value. Graph draw roughly.
c) Make a decision.

it is claimed that the variance the monthly households was selected and their monthly incomes are given 120 130 110 100 105 95 140 115 125 using a significance level of alpha 005 test the cl 92193

Added by Michelle O.

Elementary Statistics a Step by Step Approach

Allan G. Bluman 9th Edition

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Solved by Expert Adi S

05/18/2023

Step 1

** The claim is that the population variance is greater than 215.29. Let $\sigma^2$ be the population variance. The claim can be written as $\sigma^2 > 215.29$. The null hypothesis ($H_0$) always contains an equality. The alternative hypothesis ($H_1$) is the Show more…

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It is claimed that the variance the monthly households was selected and their monthly incomes are given 120, 130, 110, 100, 105, 95, 140, 115, 125. Using a significance level of $\alpha = 0.05$ test the claim that the population variance is greater than ($s^2 = 215.29$). a) State null and alternative hypothesis. b) Determine appropriate test statistic and critical value. Graph draw roughly. c) Make a decision.