a margin of error o
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section: Chapter Questions
Problem 22SGR
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Question
![Annual starting salaries for college graduates with degree in business administration
are generally expected to be between $20,000 and $45,000. Assume that a 95%
confidence interval estimate of the population mean annual starting salary is
desired.
Determine how large a sample should be taken for each of the following desired
margin of error.
Upper Limit - Lower Limit
Hint: Use formula o =
to estimate the population
4
1. 960 for 95% confidence level.
standard deviation and
Za/2
For a margin of error of +$400, the required sample size n is (round to the nearest
integer):
For a margin of error of +$150, the required sample size n is (round to the nearest
integer):](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Fe5322f76-08be-4cea-9041-3fbbc034811a%2F403afc6f-e9c4-4e83-98d0-977aef599b31%2Fcy6hwa5_processed.jpeg&w=3840&q=75)
Transcribed Image Text:Annual starting salaries for college graduates with degree in business administration
are generally expected to be between $20,000 and $45,000. Assume that a 95%
confidence interval estimate of the population mean annual starting salary is
desired.
Determine how large a sample should be taken for each of the following desired
margin of error.
Upper Limit - Lower Limit
Hint: Use formula o =
to estimate the population
4
1. 960 for 95% confidence level.
standard deviation and
Za/2
For a margin of error of +$400, the required sample size n is (round to the nearest
integer):
For a margin of error of +$150, the required sample size n is (round to the nearest
integer):
![For a margin of error of E$140, the required sample size n is (round to the nearest
integer):](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Fe5322f76-08be-4cea-9041-3fbbc034811a%2F403afc6f-e9c4-4e83-98d0-977aef599b31%2F1bdbdq_processed.jpeg&w=3840&q=75)
Transcribed Image Text:For a margin of error of E$140, the required sample size n is (round to the nearest
integer):
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