Each year, researchers at the U.S. Bureau of Labor Statistics (BLS) administer the American Time Use Survey (ATUS). Researchers estimate the average amount of time Americans spend on daily activities, such as working, housework, and leisure activities. In particular, one activity that is of interest is the average amount of time Americans spend watching television each day. A researcher complied a random sample of 16 Americans and asked each person how much time they spent watching television each day. The results are given below. 2.3 1.9 2.3 4.2 2.5 1.6 3.9 1.5 2.7 2.9 2.4 4.7 3.4 4.3 0.8 3.4 Determine the point estimate, a and the sample standard deviation, s. Round the solutions to four decimal places, if necessary. 1. S = Using a 99.9% confidence level, determine the margin of error, E, and a confidence interval for the average time Americans spend watching television each day. Report the confidence interval using interval notation. Round solutions to two decimal places, if necessary. The margin of error is given by E A 99.9% confidence interval is given by
Each year, researchers at the U.S. Bureau of Labor Statistics (BLS) administer the American Time Use Survey (ATUS). Researchers estimate the average amount of time Americans spend on daily activities, such as working, housework, and leisure activities. In particular, one activity that is of interest is the average amount of time Americans spend watching television each day. A researcher complied a random sample of 16 Americans and asked each person how much time they spent watching television each day. The results are given below. 2.3 1.9 2.3 4.2 2.5 1.6 3.9 1.5 2.7 2.9 2.4 4.7 3.4 4.3 0.8 3.4 Determine the point estimate, a and the sample standard deviation, s. Round the solutions to four decimal places, if necessary. 1. S = Using a 99.9% confidence level, determine the margin of error, E, and a confidence interval for the average time Americans spend watching television each day. Report the confidence interval using interval notation. Round solutions to two decimal places, if necessary. The margin of error is given by E A 99.9% confidence interval is given by
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
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Transcribed Image Text:Each year, researchers at the U.S. Bureau of Labor Statistics (BLS) administer the American Time Use Survey
(ATUS). Researchers estimate the average amount of time Americans spend on daily activities, such as
working, housework, and leisure activities. In particular, one activity that is of interest is the average
amount of time Americans spend watching television each day.
A researcher complied a random sample of 16 Americans and asked each person how much time they spent
watching television each day. The results are given below.
2.3
1.9
2.3
4.2
2.5
1.6
3.9
1.5
2.7
2.9
2.4
4.7
3.4
4.3
0.8
3.4
Determine the point estimate, a and the sample standard deviation, s. Round the solutions to four decimal
places, if necessary.
S =
Using a 99.9% confidence level, determine the margin of error, E, and a confidence interval for the
average time Americans spend watching television each day. Report the confidence interval using interval
notation. Round solutions to two decimal places, if necessary.
The margin of error is given by E
A 99.9% confidence interval is given by
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