The mayor is interested in finding a 98% confidence intervalfor the mean number of pounds of trash per person perweek that is generated in the city. The study included 202residents whose mean number of pounds of trash generatedper person per week was 35.7 pounds and the standarddeviation was 6.8 pounds. Round answers to 3 decimalplaces where possible.a. To compute the confidence interval use a ? vdistribution.b. With 98% confidence the population mean number ofpounds per person per week is betweenandpounds.c. If many groups of 202 randomly selected members arestudied, then a different confidence interval would beproduced from each group. Aboutpercent of theseconfidence intervals will contain the true population meannumber of pounds of trash generated per person per weektand aboutpercent will not contain the truepopulation mean number of pounds of trash generated perperson per week.

Given,sample size(n)=202sample mean(x¯)=35.7standard deviation(S)=6.8degrees of…

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 city. The study included 160 residents whose mean number of pounds of trash generated per person per week was 36.7 pounds and the standard deviation was 7.7 pounds. a. To compute the confidence interval use a ? distribution. b. With 95% confidence the population mean number of pounds per person per week is between ? and ? pounds. c. If many groups of 160 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.
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 140 residents whose mean number of pounds of trash generated per person per week was 35.8 pounds and the standard deviation was 8.4 pounds. Round answers to 3 decimal places where possible. a. To compute the confidence interval use a ?v distribution. b. With 95% confidence the population mean number of pounds per person per week is between and pounds. c. If many groups of 140 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 percent will not contain the true population mean number of per week and about pounds of trash generated per person per week.
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 249 residents whose mean number of pounds of trash generated per person per week was 34.5 pounds and the standard deviation was 6.2 pounds. Round answers to 3 decimal places where possible. a. To compute the confidence interval use a ? 0 distribution. b. With 90% 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 percent will population mean number of pounds of trash generated per person per week and about not contain the true population mean number of pounds of trash generated per person per week.
Researchers examined the bill color (in hue degree) of male and female zebra finches. Here are the summary statistics from the study. Sex N Mean Standard deviation Males 59 2.91 1.46 Females 60 7.42 2.48 How different are male and female zebra finches in bill color? The margin of error for a 95% confidence interval for the difference in mean bill color μF – μM (in hue degree) is
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 185 residents whose mean number of pounds of trash generated per person per week was 37.2 pounds and the standard deviation was 6.3 pounds. Round answers to 3 decimal places where possible. a. To compute the confidence interval use a distribution. b. With 95% confidence the population mean number of pounds per person per week is between and pounds. c. 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.
The mayor is interested in finding a 98% confidence interval for the mean number of pounds of trash per person per week that is generated in the city. The study included 233 residents whose mean number of pounds of trash generated per person per week was 33.9 pounds and the standard deviation was 8.2 pounds. Round answers to 3 decimal places where possible. a. To compute the confidence interval use a distribution. b. With 98% confidence the population mean number of pounds per person per week is between and pounds. c. If many groups of 233 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. Hint: Hints Video [+]
The mayor is interested in finding a 99% confidence interval for the mean number of pounds of trash per person per week that is generated in the city. The study included 205 residents whose mean number of pounds of trash generated per person per week was 33.1 pounds and the standard deviation was 8.7 pounds. Round answers to 3 decimal places where possible. a. To compute the confidence interval use a t Or distribution. b. With 99% confidence the population mean number of pounds per person per week is between and pounds. c. If many groups of 205 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.
A random sample of 64 shoppers showed that they spend an average of $27.31 per visit at the Sunday Mornings Bookstore. The standard deviation of the population is $2.14. Find the 90% confidence interval of the true mean. Please include all work showing how you found your answer.
A fitness center is interested in finding a 95% confidence interval for the mean number of days per week that Americans who are members of a fitness club go to their fitness center. Records of 271 members were looked at and their mean number of visits per week was 2.3 and the standard deviation was 1.6. a. To compute the confidence interval use a ? distribution. b. With 95% confidence the population mean number of visits per week is between visits. and c. If many groups of 271 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 visits per week and about percent will not contain the true population mean number of visits per week.

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