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An industrial supplier has shipped a truckload of teflon lubricant cartridges to an aerospace customer. The customer has been assured tha the mean weight of these cartridges is less than the 10 ounces printed on each cartridge. To check this claim, a sample of n=10 cartridges is randomly selected from the shipment and weighed. Summary statistics for the sample are: x = 9.95 ounces, s = .30 ounce. To determine whether the supplier's claim is true, consider the test, Ho:u = 10 vs Ha: u < 10, where u is the true mean weight of the cartridges. Use a=.01. Find the test statistic for this test O A. z=.61 O B. z=-61 O C. t=-53 O D. t=.53

An industrial supplier has shipped a truckload of teflon lubricant cartridges to an aerospace customer. The customer has been assured tha the mean weight of these cartridges is less than the 10 ounces printed on each cartridge. To check this claim, a sample of n=10 cartridges is randomly selected from the shipment and weighed. Summary statistics for the sample are: x = 9.95 ounces, s = .30 ounce. To determine whether the supplier's claim is true, consider the test, Ho:u = 10 vs Ha: u < 10, where u is the true mean weight of the cartridges. Use a=.01. Find the test statistic for this test O A. z=.61 O B. z=-61 O C. t=-53 O D. t=.53

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.3: Measures Of Spread
Problem 1GP
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An industrial supplier has shipped a truckload of teflon lubricant cartridges to an aerospace customer. The customer has been assured tha the mean weight of these cartridges is less than the 10 ounces printed on each cartridge. To check this claim, a sample of n=10 cartridges is randomly selected from the shipment and weighed. Summary statistics for the sample are: x = 9.95 ounces, s = .30 ounce. To determine whether the supplier's claim is true, consider the test, Ho: u = 10 vs Ha: u< 10, where u is the true mean weight of the cartridges. Use a=.01. %3D Find the test statistic for this test. O A. z .61 O B. z = -.61 O C. t=-.53 D. t .53
Transcribed Image Text:An industrial supplier has shipped a truckload of teflon lubricant cartridges to an aerospace customer. The customer has been assured tha the mean weight of these cartridges is less than the 10 ounces printed on each cartridge. To check this claim, a sample of n=10 cartridges is randomly selected from the shipment and weighed. Summary statistics for the sample are: x = 9.95 ounces, s = .30 ounce. To determine whether the supplier's claim is true, consider the test, Ho: u = 10 vs Ha: u< 10, where u is the true mean weight of the cartridges. Use a=.01. %3D Find the test statistic for this test. O A. z .61 O B. z = -.61 O C. t=-.53 D. t .53
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