The average weekly starting salary of computer programmers in a city is $750 (that is μ) with a standard deviation of $40 (that is σ). The population of computer programmers in the city is 3000. Assume that we select a random sample of 64 computer programmers. 1. What is the expected value of the sample mean? 2. What is the standard error of the sample mean? 3. What is the shape of the distribution? 4. What is the probability that the sample mean will be within +/- $10 of the population mean?
The average weekly starting salary of computer programmers in a city is $750 (that is μ) with a standard deviation of $40 (that is σ). The population of computer programmers in the city is 3000. Assume that we select a random sample of 64 computer programmers. 1. What is the expected value of the sample mean? 2. What is the standard error of the sample mean? 3. What is the shape of the distribution? 4. What is the probability that the sample mean will be within +/- $10 of the population mean?
Calculus For The Life Sciences
2nd Edition
ISBN:9780321964038
Author:GREENWELL, Raymond N., RITCHEY, Nathan P., Lial, Margaret L.
Publisher:GREENWELL, Raymond N., RITCHEY, Nathan P., Lial, Margaret L.
Chapter13: Probability And Calculus
Section13.CR: Chapter 13 Review
Problem 65CR
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The average weekly starting salary of computer programmers in a city is $750 (that is μ) with a standard deviation of $40 (that is σ). The population of computer programmers in the city is 3000. Assume that we select a random sample of 64 computer programmers.
1. What is the
2. What is the standard error of the sample mean?
3. What is the shape of the distribution?
4. What is the probability that the sample mean will be within +/- $10 of the population mean?
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