The mayor is interested in finding a 90% confidence interval for the mean number of pounds oftrash per person per week that is generated in city. The study included 177 residents whosemean number of pounds of trash generated per person per week was 35.4 pounds and thestandard deviation was 6.2 pounds.a. To compute the confidence interval use a ? distribution.b. With 90% confidence the population mean number of pounds per person per week is betweenandpounds.c. If many groups of 177 randomly selected members are studied, then a different confidenceinterval would be produced from each group. About percent of these confidenceintervals will contain the true population mean number of pounds of trash generated per personper week and about percent will not contain the true population mean number of poundsof trash generated per person per week.

GIvensample size(n)=177Mean(x)=35.4standard deviation(s)=6.2

Answered: The mayor is interested in finding a…

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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The mayor is interested in finding a 95% confidence interval for the mean number of pounds of trash per person per week that is generated in the city. The study included 249 residents whose mean number of pounds of trash generated per person per week was 34.8 pounds and the standard deviation was 7.2 pounds. Round answers to 3 decimal places where possible. b. With 95% confidence the population mean number of pounds per person per week is between ? and ? pounds. c. If many groups of 249 randomly selected members are studied, then a different confidence interval would be produced from each group. About ? percent of these confidence intervals will contain the true population mean number of pounds of trash generated per person per week and about ? percent will not contain the true population mean number of pounds of trash generated per person per week.
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The mayor is interested in finding a 90% confidence interval for the mean number of pounds of trash per person per week that is generated in the city. The study included 185 residents whose mean number of pounds of trash generated per person per week was 34.3 pounds and the standard deviation was 6.4 pounds. Round answers to 3 decimal places where possible. a. With 90% confidence the population mean number of pounds per person per week is between and pounds. b. If many groups of 185 randomly selected members are studied, then a different confidence interval would be produced from each group. About percent of these confidence intervals will contain the true population mean number of pounds of trash generated per person per week and about percent will not contain the true population mean number of pounds of trash generated per person per week.

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