A company produces steel rods. The lengths of the steel rods are normally distributed with a mean of 90- cm and a standard deviation of 2.5-cm. Find P73, which is the length separating the shortest 73% rods from the longest 27%. P73 -cm Enter your answer as a number accurate to 1 decimal place. Answers obtained using exact z-scores or z- scores rounded to 3 decimal places are accepted.

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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A company produces steel rods. The lengths of the steel rods are normally distributed with a mean of 90-
cm and a standard deviation of 2.5-cm.
Find P73, which is the length separating the shortest 73% rods from the longest 27%.
P73 =
|-cm
Enter your answer as a number accurate to 1 decimal place. Answers obtained using exact z-scores or z-
scores rounded to 3 decimal places are accepted.
Transcribed Image Text:A company produces steel rods. The lengths of the steel rods are normally distributed with a mean of 90- cm and a standard deviation of 2.5-cm. Find P73, which is the length separating the shortest 73% rods from the longest 27%. P73 = |-cm Enter your answer as a number accurate to 1 decimal place. Answers obtained using exact z-scores or z- scores rounded to 3 decimal places are accepted.
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