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Compact fluorescent bulbs are more energy-efficient than incandescent bulbs, but they take longer to reach full brightness. The time it takes for a compact fluorescent bulb to reach full brightness is normally distributed with mean 29.9 seconds and standard deviation 4.9 seconds. Find and interpret the -score for x 26.1.

Compact fluorescent bulbs are more energy-efficient than incandescent bulbs, but they take longer to reach full brightness. The time it takes for a compact fluorescent bulb to reach full brightness is normally distributed with mean 29.9 seconds and standard deviation 4.9 seconds. Find and interpret the -score for x 26.1.

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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Answer the multiple choice question. Compact fluorescent bulbs are more energy efficient than incandescent bulbs, but they take longer to reach full brightness.
Compact fluorescent bulbs are more energy-efficient than incandescent bulbs, but they take longer to reach full brightness. The time it takes for a compact fluorescent bulb to reach full brightness is normally distributed with mean 29.9 seconds and standard deviation 4.9 seconds. Find and interpret the -score for x 26.1. 0.71: the time to reach full brightness is 0.71 standard deviations below the mean. := -0.78: the tìme to reach full brightness is 0.78 standard deviations below the mean. == -0.78: the time to reach full brightness is 0.78 standard deviations above the mean. := 0.71: the time to reach full brightness is 0.71 standard deviations above the mean.
Transcribed Image Text:Compact fluorescent bulbs are more energy-efficient than incandescent bulbs, but they take longer to reach full brightness. The time it takes for a compact fluorescent bulb to reach full brightness is normally distributed with mean 29.9 seconds and standard deviation 4.9 seconds. Find and interpret the -score for x 26.1. 0.71: the time to reach full brightness is 0.71 standard deviations below the mean. := -0.78: the tìme to reach full brightness is 0.78 standard deviations below the mean. == -0.78: the time to reach full brightness is 0.78 standard deviations above the mean. := 0.71: the time to reach full brightness is 0.71 standard deviations above the mean.
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