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The mean of a recent sample of 29 cups of coffee was found to be 12.29 ounces. Use the critical value method to test the hypothesis that the mean volume of coffee dispensed by this machine is different than 12 ounces, using a = 0.01. Assume that the distribution of all cups of coffee dispensed from the coffee-maker is known to be approximately normally distributed with a standard deviation of 0.52 ounces. State the null and alternative hypothesis for this test. Ho: ? H1:? Determine if this test is left-tailed, right-tailed, or two-tailed. O two-tailed O left-tailed right-tailed Should the standard normal (z) distribution or Student's (t) distribution be used for this test? O The Student's t distribution should be used O The standard normal (z) 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 mean of a recent sample of 29 cups of coffee was found to be 12.29 ounces. Use the critical value method to test the hypothesis that the mean volume of coffee dispensed by this machine is different than 12 ounces, using a = 0.01. Assume that the distribution of all cups of coffee dispensed from the coffee-maker is known to be approximately normally distributed with a standard deviation of 0.52 ounces. State the null and alternative hypothesis for this test. Ho: ? H1:? Determine if this test is left-tailed, right-tailed, or two-tailed. O two-tailed O left-tailed right-tailed Should the standard normal (z) distribution or Student's (t) distribution be used for this test? O The Student's t distribution should be used O The standard normal (z) 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.

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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Ho: ? v H: ? Determine if this test is left-tailed, right-tailed, or two-tailed. O two-tailed O left-tailed O right-tailed Should the standard normal (z) distribution or Student's (t) distribution be used for this test? O The Student's t distribution should be used O The standard normal (z) 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. O The sample data provide sufficient evidence to reject the null hypothesis that the mean pour of coffee dispensed by the coffee maker is 12 ounces and thus we conclude that the coffee maker needs to be serviced by the manufacturer. O The sample data do not provide sufficient evidence to reject the null hypothesis that the mean pour of coffee dispensed by the coffee maker is 12 ounces and thus we conclude that the coffee maker does not need to be serviced by the manufacturer. O The sample data do not provide sufficient evidence to reject the alternative hypothesis that the mean pour of coffee dispensed by the coffee maker is different from 12 ounces and thus we conclude that the coffee maker needs to be serviced by the manufacturer. O The sample data provide sufficient evidence to reject the alternative hypothesis that the mean pour of coffee dispensed by the coffee maker is significantly different than 12 ounces and thus we conclude that the coffee maker does not need to be serviced by the manufacturer.
Transcribed Image Text:Ho: ? v H: ? Determine if this test is left-tailed, right-tailed, or two-tailed. O two-tailed O left-tailed O right-tailed Should the standard normal (z) distribution or Student's (t) distribution be used for this test? O The Student's t distribution should be used O The standard normal (z) 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. O The sample data provide sufficient evidence to reject the null hypothesis that the mean pour of coffee dispensed by the coffee maker is 12 ounces and thus we conclude that the coffee maker needs to be serviced by the manufacturer. O The sample data do not provide sufficient evidence to reject the null hypothesis that the mean pour of coffee dispensed by the coffee maker is 12 ounces and thus we conclude that the coffee maker does not need to be serviced by the manufacturer. O The sample data do not provide sufficient evidence to reject the alternative hypothesis that the mean pour of coffee dispensed by the coffee maker is different from 12 ounces and thus we conclude that the coffee maker needs to be serviced by the manufacturer. O The sample data provide sufficient evidence to reject the alternative hypothesis that the mean pour of coffee dispensed by the coffee maker is significantly different than 12 ounces and thus we conclude that the coffee maker does not need to be serviced by the manufacturer.
A single-serve coffee maker is programmed to dispense 12 ounces per cup of coffee. Each month, a quality control representative from the manufacturer takes a random sample of 29 cups of coffee from the coffee maker and carefully measures each pour. If the average pour of the sample is found to be significantly different than 12 ounces, then the machine is sent back to the manufacturer for repair. The mean of a recent sample of 29 cups of coffee was found to be 12.29 ounces. Use the critical value method to test the hypothesis that the mean volume of coffee dispensed by this machine is different than 12 ounces, using a = 0.01. Assume that the distribution of all cups of coffee dispensed from the coffee-maker is known to be approximately normally distributed with a standard deviation of 0.52 ounces. State the null and alternative hypothesis for this test. Ho: ? H1:? v Determine if this test is left-tailed, right-tailed, or two-tailed. O two-tailed O left-tailed O right-tailed Should the standard normal (2) distribution or Student's (t) distribution be used for this test? O The Student's t distribution should be used O The standard normal (z) 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.
Transcribed Image Text:A single-serve coffee maker is programmed to dispense 12 ounces per cup of coffee. Each month, a quality control representative from the manufacturer takes a random sample of 29 cups of coffee from the coffee maker and carefully measures each pour. If the average pour of the sample is found to be significantly different than 12 ounces, then the machine is sent back to the manufacturer for repair. The mean of a recent sample of 29 cups of coffee was found to be 12.29 ounces. Use the critical value method to test the hypothesis that the mean volume of coffee dispensed by this machine is different than 12 ounces, using a = 0.01. Assume that the distribution of all cups of coffee dispensed from the coffee-maker is known to be approximately normally distributed with a standard deviation of 0.52 ounces. State the null and alternative hypothesis for this test. Ho: ? H1:? v Determine if this test is left-tailed, right-tailed, or two-tailed. O two-tailed O left-tailed O right-tailed Should the standard normal (2) distribution or Student's (t) distribution be used for this test? O The Student's t distribution should be used O The standard normal (z) 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.
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