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 city. The study included 177 residents whose mean number of pounds of trash generated per person per week was 35.4 pounds and the standard 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 between and pounds. c. If many groups of 177 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.

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.4: Distributions Of Data
Problem 19PFA
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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 city. The study included 177 residents whose
mean number of pounds of trash generated per person per week was 35.4 pounds and the
standard 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 between
and
pounds.
c. If many groups of 177 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.
Transcribed Image Text: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 city. The study included 177 residents whose mean number of pounds of trash generated per person per week was 35.4 pounds and the standard 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 between and pounds. c. If many groups of 177 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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