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The MP3 player, aPod, made by Mango Corp., has an average battery of 400 hours. Battery life for the aPod is normally distributed with a standard deviation of 25 hours. The MP3 player, PeaPod, ma de by Pineapple Inc., has an average battery life of 390 hours. The distribution for its battery life is also normally distributed with a standard deviation of 30 hours. • Find the z- scores for each battery with lives of 250, 350, 410, and 450 hours. • Which battery lasting 410 hours performed better? • What percent of aPod batteries last between 375 and 410 hours? What percent of PeaPod batteries last more than 370 hours?

The MP3 player, aPod, made by Mango Corp., has an average battery of 400 hours. Battery life for the aPod is normally distributed with a standard deviation of 25 hours. The MP3 player, PeaPod, ma de by Pineapple Inc., has an average battery life of 390 hours. The distribution for its battery life is also normally distributed with a standard deviation of 30 hours. • Find the z- scores for each battery with lives of 250, 350, 410, and 450 hours. • Which battery lasting 410 hours performed better? • What percent of aPod batteries last between 375 and 410 hours? What percent of PeaPod batteries last more than 370 hours?

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
Section10.4: Distributions Of Data
Problem 7PPS
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2. The MP3 player, aPod, made by Mango Corp., has an average battery of 400 hours. Battery life for the aPod is normally distributed with a standard deviation of 25 hours. The MP3 player, PeaPod, ma de by Pineapple Inc., has an average battery life of 390 hours. The distribution for its battery life is also normally distributed with a standard deviation of 30 hours. • Find the z- scores for each battery with lives of 250, 350, 410, and 450 hours. • Which battery lasting 410 hours performed better? • What percent of aPod batteries last between 375 and 410 hours? • What percent of PeaPod batteries last more than 370 hours?
Transcribed Image Text:2. The MP3 player, aPod, made by Mango Corp., has an average battery of 400 hours. Battery life for the aPod is normally distributed with a standard deviation of 25 hours. The MP3 player, PeaPod, ma de by Pineapple Inc., has an average battery life of 390 hours. The distribution for its battery life is also normally distributed with a standard deviation of 30 hours. • Find the z- scores for each battery with lives of 250, 350, 410, and 450 hours. • Which battery lasting 410 hours performed better? • What percent of aPod batteries last between 375 and 410 hours? • What percent of PeaPod batteries last more than 370 hours?
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