The lifetime of a certain brand of an electric bulb may be considered a RV with mean 1200 h and standard deviation 250 h. Find the probability, using central limit theorem, that the average lifetime of 60 bulbs exceeds 1250 h.
The lifetime of a certain brand of an electric bulb may be considered a RV with mean 1200 h and standard deviation 250 h. Find the probability, using central limit theorem, that the average lifetime of 60 bulbs exceeds 1250 h.
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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![The lifetime of a certain brand of an electric bulb may be considered a RV with
mean 1200 h and standard deviation 250 h. Find the probability, using central
limit theorem, that the average lifetime of 60 bulbs exceeds 1250 h.](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F64a7f553-9f71-4671-ad02-5366fc01f65a%2Faee83401-2203-4287-9d2f-d5c0c0e9704d%2Fol1q5r_processed.jpeg&w=3840&q=75)
Transcribed Image Text:The lifetime of a certain brand of an electric bulb may be considered a RV with
mean 1200 h and standard deviation 250 h. Find the probability, using central
limit theorem, that the average lifetime of 60 bulbs exceeds 1250 h.
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