A manufacturer claims that the mean lifetime of its fluorescent bulbs hours. A homeowner selects 40 bulbs and finds the mean lifetime to hours with a population standard deviation of 80 hours. Test the man claim. Use a = 0.05. (a) State the Null and Alternative Hypothesis for this test. (b) Draw the critical region sketch using the 5% level of significance.
A manufacturer claims that the mean lifetime of its fluorescent bulbs hours. A homeowner selects 40 bulbs and finds the mean lifetime to hours with a population standard deviation of 80 hours. Test the man claim. Use a = 0.05. (a) State the Null and Alternative Hypothesis for this test. (b) Draw the critical region sketch using the 5% level of significance.
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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