The gas mileages (in miles per gallon) of 26 randomly selected sports cars are listed in the accompanying table. Assume the mileages are not normally distributed. Use the standard normal distribution or the t-distribution to construct a 95% confidenceinterval for the population mean. Justify your decision. If neither distribution can be used, explain why. Interpret the results.Click the icon to view the sports car gas mileages.Let o be the population standard deviation and let n be the sample size. Which distribution should be used to construct the confidence interval?V be used to construct the confidence interval, sinceSports Car Gas Mileages2016292118211822191920211720241926161717191828242521PrintDone

The t-distribution is used to construct the confidence interval for mean, if the population…

The gas mileages (in miles per gallon) of 26 randomly selected sports cars are listed in the accompanying table. Assume the mileages are not normally distributed. Use the standard normal distribution or the t-distribution to construct a 95% confidence interval for the population mean. Justify your decision. If neither distribution can be used, explain why. Interpret the results. E Click the icon to view the sports car gas mileages. Let a be the population standard deviation and let n be the sample size. Which distribution should be used to construct the confidence interval? be used to construct the confidence interval, since

The gas mileages (in miles per gallon) of 26 randomly selected sports cars are listed in the accompanying table. Assume the mileages are not normally distributed. Use the standard normal distribution or the t-distribution to construct a 95% confidence interval for the population mean. Justify your decision. If neither distribution can be used, explain why. Interpret the results. E Click the icon to view the sports car gas mileages. Let a be the population standard deviation and let n be the sample size. Which distribution should be used to construct the confidence interval? be used to construct the confidence interval, since

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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Concept explainers

Estimation

A new framework of data analysis where the new statistical methods are used for interpreting the results and analyzing the data is known as estimation in statistics.

Question

The gas mileages (in miles per gallon) of 26 randomly selected sports cars are listed in the accompanying table. Assume the mileages are not normally distributed. Use the standard normal distribution or the t-distribution to construct a 95% confidence
interval for the population mean. Justify your decision. If neither distribution can be used, explain why. Interpret the results.
Click the icon to view the sports car gas mileages.
Let o be the population standard deviation and let n be the sample size. Which distribution should be used to construct the confidence interval?
V be used to construct the confidence interval, since
Sports Car Gas Mileages
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Refer to the data set in the accompanying table. Assume that the paired sample data is a simple random sample and the differences have a distribution that is approximately normal. Use a significance level of 0.05 to test for a difference between the weights of discarded paper (in pounds) and weights of discarded plastic (in pounds). LOADING... Click the icon to view the data. In this example, μd is the mean value of the differences d for the population of all pairs of data, where each individual difference d is defined as the weight of discarded paper minus the weight of discarded plastic for a household. What are the null and alternative hypotheses for the hypothesis test? A. H0: μd≠0 H1: μd>0 B. H0: μd=0 H1: μd<0 C. H0: μd=0 H1: μd≠0 D. H0: μd≠0 H1: μd=0 Household Paper Plastic 1 6.44 8.40 2 7.72 3.86 3 3.27 0.63 4 9.19 3.74 5 14.33 6.43 6 11.08 12.47 7…