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Compute the value of the test statistic. Round the answer to three decimal places. t = 1.8

Compute the value of the test statistic. Round the answer to three decimal places. t = 1.8

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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Free dessert: In an attempt to increase business on Monday nights, a restaurant offers a free dessert with every dinner order. Before the offer, the mean number of dinner customers on Monday was 150. Following are the numbers of diners on a random sample of 12 days while the offer was in effect. Can you conclude that the mean number of diners increased while the free dessert offer was in effect? Use the a =0.05 level of significance and the critical value method with the Critical Values for the Student's t Distribution Table. 196 159 181 142 202 129 132 141 164 210 182 143 Send data to Excel Part 1 of 6 Following is a boxplot for these data. Is it reasonable to assume that the conditions for performing a hypothesis test are satisfied? Explain. 100 120 140 160 180 200 220 240 The boxplot shows that there are no outliers. The boxplot shows that there is no evidence of strong skewness. We can assume that the population is approximately normal. It is reasonable to assume that the conditions are satisfied.
Transcribed Image Text:Free dessert: In an attempt to increase business on Monday nights, a restaurant offers a free dessert with every dinner order. Before the offer, the mean number of dinner customers on Monday was 150. Following are the numbers of diners on a random sample of 12 days while the offer was in effect. Can you conclude that the mean number of diners increased while the free dessert offer was in effect? Use the a =0.05 level of significance and the critical value method with the Critical Values for the Student's t Distribution Table. 196 159 181 142 202 129 132 141 164 210 182 143 Send data to Excel Part 1 of 6 Following is a boxplot for these data. Is it reasonable to assume that the conditions for performing a hypothesis test are satisfied? Explain. 100 120 140 160 180 200 220 240 The boxplot shows that there are no outliers. The boxplot shows that there is no evidence of strong skewness. We can assume that the population is approximately normal. It is reasonable to assume that the conditions are satisfied.
State the appropriate null and alternate hypotheses. Ho 150 Η: μ>150 test. This hypothesis test is a right-tailed Part 3 of 6 Find the critical value(s). Round to three decimal places. If there is more than one critical value, separate them with commas. Critical value(s): 1.796 Part: 3 / 6 Part 4 of 6 Compute the value of the test statistic. Round the answer to three decimal places. t =| 1.8
Transcribed Image Text:State the appropriate null and alternate hypotheses. Ho 150 Η: μ>150 test. This hypothesis test is a right-tailed Part 3 of 6 Find the critical value(s). Round to three decimal places. If there is more than one critical value, separate them with commas. Critical value(s): 1.796 Part: 3 / 6 Part 4 of 6 Compute the value of the test statistic. Round the answer to three decimal places. t =| 1.8
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