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A pipes manufacturer makes pipes with a length that is supposed to be 16 inches. A quality control technician sampled 30 pipes and found that the sample mean length was 16.09 inches and the sample standard deviation was 0.25 inches. The technician claims that the mean pipe length is not 16 inches. What type of hypothesis test should be performed? Select Select What is the test statistic? Ex: 0.123 Left-tailed t-test What is the number of degrees of freedom? Ex: 20 Right-tailed t-test Left-tailed z-test Does sufficient evidence exist at the a = 0.1 signif technician's claim? Select v rt the %3D Two-tailed t-test

A pipes manufacturer makes pipes with a length that is supposed to be 16 inches. A quality control technician sampled 30 pipes and found that the sample mean length was 16.09 inches and the sample standard deviation was 0.25 inches. The technician claims that the mean pipe length is not 16 inches. What type of hypothesis test should be performed? Select Select What is the test statistic? Ex: 0.123 Left-tailed t-test What is the number of degrees of freedom? Ex: 20 Right-tailed t-test Left-tailed z-test Does sufficient evidence exist at the a = 0.1 signif technician's claim? Select v rt the %3D Two-tailed t-test

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
Section10.5: Comparing Sets Of Data
Problem 13PPS
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What type of hypothesis test should be performed?

 

what is the test statistics?

what is the number of degrees of freedom?

does sufficient evidence exist at the a= 0.1 significance level to support the technicians claim? (Yes or No)

CHALLENGE 6.2.1: Hypothesis test for a population mean. ACTIVITY Jump to level 1 A pipes manufacturer makes pipes with a length that is supposed to be 16 inches. A quality control technician sampled 30 pipes and found that the sample mean length was 16.09 inches and the sample standard deviation was 0.25 inches. The technician claims that the mean pipe length is not 16 inches. What type of hypothesis test should be performed? Select Select What is the test statistic? Ex: 0.123 Left-tailed t-test What is the number of degrees of freedom? Ex: 20 Right-tailed t-test Does sufficient evidence exist at the a = 0.1 signif Left-tailed z-test rt the technician's claim? Select v Two-tailed t-test 3 Check Next o Type here to search W DI
Transcribed Image Text:CHALLENGE 6.2.1: Hypothesis test for a population mean. ACTIVITY Jump to level 1 A pipes manufacturer makes pipes with a length that is supposed to be 16 inches. A quality control technician sampled 30 pipes and found that the sample mean length was 16.09 inches and the sample standard deviation was 0.25 inches. The technician claims that the mean pipe length is not 16 inches. What type of hypothesis test should be performed? Select Select What is the test statistic? Ex: 0.123 Left-tailed t-test What is the number of degrees of freedom? Ex: 20 Right-tailed t-test Does sufficient evidence exist at the a = 0.1 signif Left-tailed z-test rt the technician's claim? Select v Two-tailed t-test 3 Check Next o Type here to search W DI
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