5) According to a union newsletter, workers in the union have a mean salary of $1800 per month. Assume o = $240 for this population of workers. Suppose 36 union workers are randomly selected and X is the sample mean monthly salary. Use x= $1825 to find P(X < $1825). a. Find uz b. Find oz c. Sketch the curve and find z score corresponding to the indicated x value. d. Interpret the meaning of part (c) e. Find the indicated probability. f. State the meaning of the answer in part (e)

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 14PPS
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5) According to a union newsletter, workers in the union have a mean salary of $1800 per
month. Assume o = $240 for this population of workers. Suppose 36 union workers are
randomly selected and X is the sample mean monthly salary. Use x= $1825 to find
P(X < $1825).
a. Find uz
b. Find oz
c. Sketch the curve and find z score corresponding to the indicated x value.
d. Interpret the meaning of part (c)
e. Find the indicated probability.
f. State the meaning of the answer in part (e)
Transcribed Image Text:5) According to a union newsletter, workers in the union have a mean salary of $1800 per month. Assume o = $240 for this population of workers. Suppose 36 union workers are randomly selected and X is the sample mean monthly salary. Use x= $1825 to find P(X < $1825). a. Find uz b. Find oz c. Sketch the curve and find z score corresponding to the indicated x value. d. Interpret the meaning of part (c) e. Find the indicated probability. f. State the meaning of the answer in part (e)
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