ndom sample of 40 adults with no children under the age of 18 years results in a mean daily leisure time of 5.32 hours, with a standard deviation of 2 .31 hours. A random sample of 40 adults with children under the age of 18 results in a mean daiy leisure of 4.07 hours, with a standard deviation of 1.88 hours. Construct and interpret a 90% confidence interval for the mean difference in leisure time between adults with no children and adults with children (4, -) u, represent the mean leisure hours of adults with no children under the age of 18 and u, represent the mean leisure hours of adults with children under the age of 18. he 90% confidence interval for (-) is the range from Round to two decimal places as needed.) hours to hours. What is the interpretation of this confidence interval? O A. There is a 90% probability that the difference of the means is in the interval. Conclude that there is a significant difference in the number of leisure hours O B. There is 90% confidence that the difference of the means is in the interval. Conclude that there is insufficient evidence of a significant difference in the number of leisure hours O C. There is a 90% probability that the difference of the means is in the interval. Conclude that there is insufficient evidence of a significant difference in the number of leisure hours O D. There is 90% confidence that the difference of the means is in the interval. Conclude that there is a significant difference in the number of leisure hours

MATLAB: An Introduction with Applications
6th Edition
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Author:Amos Gilat
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Chapter1: Starting With Matlab
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ndom sample of 40 adults with no children under the age of 18 years results in a mean daily leisure time of 5.32 hours, with a standard deviation of 2.31 hours. A random sample of 40 adults with children under the age of 18 results in a mean daly leisure
a of 4.07 hours, with a standard deviation of 1.88 hours. Construct and interpret a 90% confidence interval for the mean difference in leisure time between adults with no children and adults with children (u, -)
et u, represent the mean leisure hours of adults with no children under the age of 18 and u, represent the mean leisure hours of adults with children under the age of 18
he 90% confidence interval for (,-) is the range from hours to
Round to two decimal places as needed.)
hours.
What is the interpretation of this confidence interval?
O A. There is a 90% probability that the difference of the means is in the interval. Conclude that there is a significant difference in the number of leisure hours.
O B. There is 90% confidence that the difference of the means is in the interval. Conclude that there is insufficient evidence of a significant difference in the number of leisure hours
O C. There is a 90% probability that the difference of the means is in the interval. Conclude that there is insufficient evidence of a significant difference in the number of leisure hours
O D. There is 90% confidence that the difference of the means is in the interval. Conclude that there is a significant difference in the number of leisure hours
Transcribed Image Text:ndom sample of 40 adults with no children under the age of 18 years results in a mean daily leisure time of 5.32 hours, with a standard deviation of 2.31 hours. A random sample of 40 adults with children under the age of 18 results in a mean daly leisure a of 4.07 hours, with a standard deviation of 1.88 hours. Construct and interpret a 90% confidence interval for the mean difference in leisure time between adults with no children and adults with children (u, -) et u, represent the mean leisure hours of adults with no children under the age of 18 and u, represent the mean leisure hours of adults with children under the age of 18 he 90% confidence interval for (,-) is the range from hours to Round to two decimal places as needed.) hours. What is the interpretation of this confidence interval? O A. There is a 90% probability that the difference of the means is in the interval. Conclude that there is a significant difference in the number of leisure hours. O B. There is 90% confidence that the difference of the means is in the interval. Conclude that there is insufficient evidence of a significant difference in the number of leisure hours O C. There is a 90% probability that the difference of the means is in the interval. Conclude that there is insufficient evidence of a significant difference in the number of leisure hours O D. There is 90% confidence that the difference of the means is in the interval. Conclude that there is a significant difference in the number of leisure hours
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