aking the family to an amusement park has become ncreasingly costly according to the industry publication amusement Business, which provides figures on the cost for a amily of four to spend the day at one of America's musement parks. A random sample of 25 families of four that ttended amusement parks yielded a sample mean of $232 nd sample standard deviation of $42. A. What is the best point estimate for the average (mean) cost for a family of four to spend the day at an American amusement park? Round your answer to the nearest dollar. Point estimate: $ B. Obtain a 95% confidence interval for the mean cost for a family of four to spend the day at an American amusement park? Round your lower and upper limits to the nearest dollar. Confidence interval: $ to $ C. What is the margin of error for the 95% confidence interval found in part B? Round answer to the nearest

MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
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Question
Taking the family to an amusement park has become
increasingly costly according to the industry publication
Amusement Business, which provides figures on the cost for a
family of four to spend the day at one of America's
amusement parks. A random sample of 25 families of four that
attended amusement parks yielded a sample mean of $232
and sample standard deviation of $42.
A. What is the best point estimate for the average (mean)
cost for a family of four to spend the day at an American
amusement park? Round your answer to the nearest
dollar.
Point estimate: $
B. Obtain a 95% confidence interval for the mean cost for a
family of four to spend the day at an American amusement
park? Round your lower and upper limits to the nearest
dollar.
Confidence interval: $
to $
C. What is the margin of error for the 95% confidence
interval found in part B? Round answer to the nearest
Transcribed Image Text:Taking the family to an amusement park has become increasingly costly according to the industry publication Amusement Business, which provides figures on the cost for a family of four to spend the day at one of America's amusement parks. A random sample of 25 families of four that attended amusement parks yielded a sample mean of $232 and sample standard deviation of $42. A. What is the best point estimate for the average (mean) cost for a family of four to spend the day at an American amusement park? Round your answer to the nearest dollar. Point estimate: $ B. Obtain a 95% confidence interval for the mean cost for a family of four to spend the day at an American amusement park? Round your lower and upper limits to the nearest dollar. Confidence interval: $ to $ C. What is the margin of error for the 95% confidence interval found in part B? Round answer to the nearest
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