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"An electrical firm produces light bulbs that have a length of life that is approximately normally distributed with a mean of 870 hours and a population standard deviation of 27 hours. A new version of light bulbs is being produced and is assumed to be better than the previous version. To test this claim, a random sample of 98 new light bulbs are tested. Would you agree with this claim if the random sample showed an average of 710 hours? Use a 0.05 level of significance. What are the given? Write only the number. : population mean:Blank 1 hours population standard deviation:Blank 2 hours sample size:Blank 3 sample mean:Blank 4 hours level of significance:Blank 5

"An electrical firm produces light bulbs that have a length of life that is approximately normally distributed with a mean of 870 hours and a population standard deviation of 27 hours. A new version of light bulbs is being produced and is assumed to be better than the previous version. To test this claim, a random sample of 98 new light bulbs are tested. Would you agree with this claim if the random sample showed an average of 710 hours? Use a 0.05 level of significance. What are the given? Write only the number. : population mean:Blank 1 hours population standard deviation:Blank 2 hours sample size:Blank 3 sample mean:Blank 4 hours level of significance:Blank 5

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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"An electrical firm produces light bulbs that have a length of life that is approximately normally distributed with a mean of 870 hours and a population standard deviation of 27 hours. A new version of light bulbs is being produced and is assumed to be better than the previous version. To test this claim, a random sample of 98 new light bulbs are tested. Would you agree with this claim if the random sample showed an average of 710 hours? Use a 0.05 level of significance. What are the given? Write only the number. : population mean:Blank 1 hours population standard deviation:Blank 2 hours sample size:Blank 3 sample mean:Blank 4 hours level of significance:Blank 5
Transcribed Image Text:"An electrical firm produces light bulbs that have a length of life that is approximately normally distributed with a mean of 870 hours and a population standard deviation of 27 hours. A new version of light bulbs is being produced and is assumed to be better than the previous version. To test this claim, a random sample of 98 new light bulbs are tested. Would you agree with this claim if the random sample showed an average of 710 hours? Use a 0.05 level of significance. What are the given? Write only the number. : population mean:Blank 1 hours population standard deviation:Blank 2 hours sample size:Blank 3 sample mean:Blank 4 hours level of significance:Blank 5
What is the critical value? z:Blank 6 What is the value of the calculated z? Round your answer to the nearest hundredths. z:Blank 7"
Transcribed Image Text:What is the critical value? z:Blank 6 What is the value of the calculated z? Round your answer to the nearest hundredths. z:Blank 7"
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