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A corporate watchdog group believes that this percentage is greatly exaggerated, and the real percem of satisfied customers is lower than 74%. The group randomly surveyed 773 recent customers of this a and found that only 571 reported being satisfied with the airline. Using a significance level of 5%, test the hypothesis that the proportion of satisfied customers of this is less than 74%. Use the critical value method. State the null and alternative hypothesis for this test. Ho: ? V H₁: ? ✓ Determine if this test is left-tailed, right-tailed, or two-tailed. Oright-tailed O two-tailed Oleft-tailed Should the standard normal (z) distribution or Student's (t) distribution be used for this test? O The standard normal (2) distribution should be used O The Student's t distribution should be used Determine the critical value(s) for this hypothesis test. Round the solution(s) to two decimal places. more than one critical value exists, enter the solutions using a comma-separated list. Determine the test statistic. Round the solution to two decimal places. Determine the appropriate conclusion for this hypothesis test. O The sample data provide sufficient evidence to reject the alternative hypothesis that the prop of all customers of this airline that are satisfied in lore than 74 and the

A corporate watchdog group believes that this percentage is greatly exaggerated, and the real percem of satisfied customers is lower than 74%. The group randomly surveyed 773 recent customers of this a and found that only 571 reported being satisfied with the airline. Using a significance level of 5%, test the hypothesis that the proportion of satisfied customers of this is less than 74%. Use the critical value method. State the null and alternative hypothesis for this test. Ho: ? V H₁: ? ✓ Determine if this test is left-tailed, right-tailed, or two-tailed. Oright-tailed O two-tailed Oleft-tailed Should the standard normal (z) distribution or Student's (t) distribution be used for this test? O The standard normal (2) distribution should be used O The Student's t distribution should be used Determine the critical value(s) for this hypothesis test. Round the solution(s) to two decimal places. more than one critical value exists, enter the solutions using a comma-separated list. Determine the test statistic. Round the solution to two decimal places. Determine the appropriate conclusion for this hypothesis test. O The sample data provide sufficient evidence to reject the alternative hypothesis that the prop of all customers of this airline that are satisfied in lore than 74 and the

College Algebra (MindTap Course List)
College Algebra (MindTap Course List)
12th Edition
ISBN:9781305652231
Author:R. David Gustafson, Jeff Hughes
Publisher:R. David Gustafson, Jeff Hughes
Chapter8: Sequences, Series, And Probability
Section8.7: Probability
Problem 58E: What is meant by the sample space of an experiment?
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An airline company recently boasted about its 74% customer satisfaction rate. A corporate watchdog group believes that this percentage is greatly exaggerated, and the real percentage of satisfied customers is lower than 74 %. The group randomly surveyed 773 recent customers of this airline and found that only 571 reported being satisfied with the airline. Using a significance level of 5%, test the hypothesis that the proportion of satisfied customers of this airline is less than 74% . Use the critical value method. State the null and alternative hypothesis for this test. Ho: ? H₁: Determine if this test is left-tailed, right-tailed, or two-tailed. Oright-tailed Otwo-tailed Oleft-tailed Should the standard normal (2) distribution or Student's (t) distribution be used for this test? O The standard normal (2) distribution should be used The Student's t distribution should be used Determine the critical value(s) for this hypothesis test. Round the solution (s) to two decimal places. If more than one critical value exists, enter the solutions using a comma-separated list. Determine the test statistic. Round the solution to two decimal places. Determine the appropriate conclusion for this hypothesis test. The sample data provide sufficient evidence to reject the alternative hypothesis that the proportion of all customers of this airline that are satisfied is less than 0.74 and thus we conclude that the proportion of all customers of this airline that are satisfied is likely 0.74.
Transcribed Image Text:An airline company recently boasted about its 74% customer satisfaction rate. A corporate watchdog group believes that this percentage is greatly exaggerated, and the real percentage of satisfied customers is lower than 74 %. The group randomly surveyed 773 recent customers of this airline and found that only 571 reported being satisfied with the airline. Using a significance level of 5%, test the hypothesis that the proportion of satisfied customers of this airline is less than 74% . Use the critical value method. State the null and alternative hypothesis for this test. Ho: ? H₁: Determine if this test is left-tailed, right-tailed, or two-tailed. Oright-tailed Otwo-tailed Oleft-tailed Should the standard normal (2) distribution or Student's (t) distribution be used for this test? O The standard normal (2) distribution should be used The Student's t distribution should be used Determine the critical value(s) for this hypothesis test. Round the solution (s) to two decimal places. If more than one critical value exists, enter the solutions using a comma-separated list. Determine the test statistic. Round the solution to two decimal places. Determine the appropriate conclusion for this hypothesis test. The sample data provide sufficient evidence to reject the alternative hypothesis that the proportion of all customers of this airline that are satisfied is less than 0.74 and thus we conclude that the proportion of all customers of this airline that are satisfied is likely 0.74.
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