The data below gives the mean price (in cents) of a litre of regular gasoline at self-service filling stations at a sample of six urban centres in Canada in May 2010.Urban areaPrice/litreHalifax105.4Thunder Bay109.2Winnipeg98,8Calgary94.9Victoria109.7Whitehorse112.5Provide answers to the following to two decimal places.Part (a) Find the sample mean (in cents).Part (b) Find the sample standard deviation (in cents).Part (c) Using the appropriate t distribution, find a 90% confidence interval for the mean gasoline price per litre across urban Canada in May 2010. Provide the upper and lower bounds for your confidence interval. (Part (d) Would a 95% confidence interval be wider or narrower than the interval you found in Part (c)? Using the appropriate t distribution, find a 95% confidence interval for the mean gasoline price per litre across urban Canada inMay 2010. Provide the upper and lower bounds for your confidence interval. (

Given data of price/litre is105.4,109.2,98.8,94.9,109.7,112.5sample size(n)=6

Answered: The data below gives the mean price (in…

A First Course in Probability (10th Edition)

10th Edition

ISBN:9780134753119

Author:Sheldon Ross

Publisher:Sheldon Ross

Chapter1: Combinatorial Analysis

Section: Chapter Questions

Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...

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