Instructions: Using the information given, determine whether a normal approximation is appropriate, and then answer the questions. 7% of all people in a certain geographic region are unemployed. A sample of 300 people are surveyed. Let widehatp represent the sample proportion of unemployed people in a certain geographic region. Is a normal approximation appropriate? Why or Why not? Yes, because npz10 and nqs10. What is the mean of the sampling proportion?

Instructions: Using the information given, determine whether a normal approximation is appropriate, and then answer the questions. 7% of all people in a certain geographic region are unemployed. A sample of 300 people are surveyed. Let widehatp represent the sample proportion of unemployed people in a certain geographic region. Is a normal approximation appropriate? Why or Why not? Yes, because npz10 and nqs10. What is the mean of the sampling proportion?

A First Course in Probability (10th Edition)

10th Edition

ISBN:9780134753119

Author:Sheldon Ross

Publisher:Sheldon Ross

Chapter1: Combinatorial Analysis

Section: Chapter Questions

Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...

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in Mastery Quiz 4.3-4.4 (page 5 of 6)
Normal Approximation
Instructions: Using the information given, determine whether a normal
approximation is appropriate, and then answer the questions.
7% of all people in a certain geographic region are unemployed. A sample of
300 people are surveyed. Let widehatp represent the sample proportion of
unemployed people in a certain geographic region.
Is a normal approximation appropriate? Why or Why not?
Yes, because npz10 and nqs10.
What is the mean of the sampling proportion?
What is the standard deviation of the sampling proportion?
(round to thousandths)
Find the probability that p is fewer than .10.
No
P(p < .10) =
Qui
roximation
Finish
Idetermine whether a normal
wer the questions.
Ars spend an average of 1.8 hours

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