Over the years, the mean customer satisfaction rating at a local restaurant has been 92. The restaurant was recently remodeled, and now the managementclaims the mean customer rating, μ, is not equal to 92. In a sample of 68 customers chosen at random, the mean customer rating is 94.3. Assume that thepopulation standard deviation of customer ratings is 14.3.Is there enough evidence to support the claim that the mean customer rating is different from 92? Perform a hypothesis test, using the 0.05 level ofsignificance.(a) State the null hypothesis Ho and the alternative hypothesis H₁.Ho:H₁:0esc0Standard Normal DistributionStep 1: Select one-tailed or two-tailed.O One-tailedOTwo-tailedExplanation@20.025 is the value that cuts off an area of 0.025 in the right tail.. The test statistic has a normal distribution and the value is given by z=CheckF2(b) Perform a hypothesis test. The test statistic has a normal distribution (so the test is a "Z-test"). Here is some other information to help you with yourtest.#50 F3000ODD F4$μ%OO=O ☐☐F6$x-μ0Vn44&Ⓒ2022 McGraw Hill LLC. All Rights Reserved. Terms of Use | Privacy Center AccessibilityF7*FB▶OF9F10F11+F12FD0dele (b)test.na hypothesis test. The test statistic has a normal distribution (so the test is a "Z-test"). Here is some other information to help you with your• 20,025The test statistic has a normal distribution and the value is given by z=is the value that cuts off an area of 0.025 in the right tail.Standard Normal DistributionStep 1: Select one-tailed or two-tailed.O One-tailedO Two-tailedStep 2: Enter the critical value(s).(Round to 3 decimal places.)Step 3: Enter the test statistic.(Round to 3 decimal places.)Explanationx-μO√nCheck040.3+0.2+0.1-(c) Based on your answer to part (b), choose what can be concluded, at the 0.05 level of significance, about the claim made by the management.Since the value of the test statistic lies in the rejection region, the null hypothesis is rejected. So, there is enoughXMacBook AirEspañolⒸ2022 McGraw Hill LLC. All Rights Reserved. Terms of Use | Privacy Center | Accessibility?LE)امه

Question

Over the years, the mean customer satisfaction rating at a local restaurant has been 92. The restaurant was recently remodeled, and now the managementclaims the mean customer rating, μ, is not equal to 92. In a sample of 68 customers chosen at random, the mean customer rating is 94.3. Assume that thepopulation standard deviation of customer ratings is 14.3.Is there enough evidence to support the claim that the mean customer rating is different from 92? Perform a hypothesis test, using the 0.05 level ofsignificance.(a) State the null hypothesis Ho and the alternative hypothesis H₁.Ho:H₁:0esc0Standard Normal DistributionStep 1: Select one-tailed or two-tailed.O One-tailedOTwo-tailedExplanation@20.025 is the value that cuts off an area of 0.025 in the right tail.. The test statistic has a normal distribution and the value is given by z=CheckF2(b) Perform a hypothesis test. The test statistic has a normal distribution (so the test is a &#34;Z-test&#34;). Here is some other information to help you with yourtest.#50 F3000ODD F4$μ%OO=O ☐☐F6$x-μ0Vn44&Ⓒ2022 McGraw Hill LLC. All Rights Reserved. Terms of Use | Privacy Center AccessibilityF7*FB▶OF9F10F11+F12FD0dele (b)test.na hypothesis test. The test statistic has a normal distribution (so the test is a &#34;Z-test&#34;). Here is some other information to help you with your• 20,025The test statistic has a normal distribution and the value is given by z=is the value that cuts off an area of 0.025 in the right tail.Standard Normal DistributionStep 1: Select one-tailed or two-tailed.O One-tailedO Two-tailedStep 2: Enter the critical value(s).(Round to 3 decimal places.)Step 3: Enter the test statistic.(Round to 3 decimal places.)Explanationx-μO√nCheck040.3+0.2+0.1-(c) Based on your answer to part (b), choose what can be concluded, at the 0.05 level of significance, about the claim made by the management.Since the value of the test statistic lies in the rejection region, the null hypothesis is rejected. So, there is enoughXMacBook AirEspañolⒸ2022 McGraw Hill LLC. All Rights Reserved. Terms of Use | Privacy Center | Accessibility?LE)امه

Accepted Answer

Parametric test is used when the population follows the normal distribution. Some of the parametric…