A public safety association suspects that long distance truck drivers are getting behind the wheel with too little sleep. A sample of 50 drivers yields a sample average of 6 hours of sleep every night with a sample standard deviation 2 hours. Which of the following statements is true (check all that apply)? a. The sample standard deviation, 2 hours, is a point estimate of the population standard deviation b. The sample mean, 6 hours, is a point estimate of the population standard deviation. c. The sample standard deviation, 2 hours, is a point estimate of the population mean d. The sample mean, 6 hours, is a point estimate of the population mean
A public safety association suspects that long distance truck drivers are getting behind the wheel with too little sleep. A sample of 50 drivers yields a sample average of 6 hours of sleep every night with a sample standard deviation 2 hours. Which of the following statements is true (check all that apply)? a. The sample standard deviation, 2 hours, is a point estimate of the population standard deviation b. The sample mean, 6 hours, is a point estimate of the population standard deviation. c. The sample standard deviation, 2 hours, is a point estimate of the population mean d. The sample mean, 6 hours, is a point estimate of the population mean
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.4: Distributions Of Data
Problem 19PFA
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A public safety association suspects that long distance truck drivers are getting behind the wheel with too little sleep. A sample of 50 drivers yields a sample average of 6 hours of sleep every night with a sample standard deviation 2 hours. Which of the following statements is true (check all that apply)?
a. |
The sample standard deviation, 2 hours, is a point estimate of the population standard deviation
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b. |
The sample
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c. |
The sample standard deviation, 2 hours, is a point estimate of the population mean
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d. |
The sample mean, 6 hours, is a point estimate of the population mean
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