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4.) Suppose that you want to decide which of the two equally priced brands of light bulbs last longer You choose a random sample of 100 bulbs of each brand and find that Brand A has a sample mean of 1,175 hoursS and standard deviation of 105 hours, and that Brand B has a sample mean of 1,220 hours and a standard deviation of 80 hours, Use 5% level of significance.

4.) Suppose that you want to decide which of the two equally priced brands of light bulbs last longer You choose a random sample of 100 bulbs of each brand and find that Brand A has a sample mean of 1,175 hoursS and standard deviation of 105 hours, and that Brand B has a sample mean of 1,220 hours and a standard deviation of 80 hours, Use 5% level of significance.

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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4.) Suppose that you want to decide which of the two equally priced brands of light bulbs last longer You choose a random sample of 100 bulbs of each brand and find that Brand A has a sample mean of 1,175 hoursS and standard deviatron of 105 hours, and that Brand B has a sample mean of 1,220 hours and a standard deviation of 80 hours. Use 5% level of significance.
Transcribed Image Text:4.) Suppose that you want to decide which of the two equally priced brands of light bulbs last longer You choose a random sample of 100 bulbs of each brand and find that Brand A has a sample mean of 1,175 hoursS and standard deviatron of 105 hours, and that Brand B has a sample mean of 1,220 hours and a standard deviation of 80 hours. Use 5% level of significance.
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