A thread manufacturer wants to estimate the mean tensile strength of a particular type of thread. A random sample of 15 examples of the thread are tested. The mean tensile strength of the sample is 7.64 pounds with a sample standard deviation of 0.48 pounds. Construct a 95% confidence interval for the mean tensile strength of that type of thread. In the next question, you will enter the upper limit of the interval. For now, enter the lower limit of the interval, rounded to two decimal places.

A thread manufacturer wants to estimate the mean tensile strength of a particular type of thread. A random sample of 15 examples of the thread are tested. The mean tensile strength of the sample is 7.64 pounds with a sample standard deviation of 0.48 pounds. Construct a 95% confidence interval for the mean tensile strength of that type of thread. In the next question, you will enter the upper limit of the interval. For now, enter the lower limit of the interval, rounded to two decimal places.

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018

18th Edition

ISBN:9780079039897

Author:Carter

Publisher:Carter

Chapter10: Statistics

Section: Chapter Questions

Problem 22SGR

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