Answer question 1. Stepwise for understanding. Q1. John Kleman is the host of the KXYX Radio AM drive-time news in Denver.During his morning program, John asked listeners to call in and discuss currentlocal and national news. This morning, john was concerned with the numbersof hours children under 12 years of age watched TV per day. The last 5 callersreported that their children watched the following numbers of hours of hours ofTV last night.3.03.54.04.53.0Would it be reasonable to develop a confidence interval from these data toshow the mean number of hours of TV watched? If yes, construct anappropriate confidence interval and interpret the result. If no, why would aconfidence interval not be appropriate?Q.2 A manufacture of cell phone batteries wants to estimate the useful life of it'sbattery (in thousand of hours.) The estimate is the be within 0.10 (100) hours.Assume 1 95 percent level of confidence and that the standard deviation of theuseful life of the battery is 0.90 (900 hours). Determine the required sample size.Q3.In a sample of 200 residents of Georgetown country, 120 reported theybelieve that country real estate taxes were too high. Developed a 95%confidence interval that proportioned of residents who believe the tax rateis too high. Would it be reasonable to conclude that the majority of thetaxpayers feel that the text says I too high.QA buffalo, your cola distributor is featuring a super-special sale on 12-packs. She wonders where in the grocery store to place the cola formaximum attention. Should it be near the front door of the grocery stores.In the cola section, at the checkout registers, or near the milk and otherdairy products? Four stores, with similar totals sales coopters, or near themilk and other dairy products?for stores with stacks near the front door, inanother they were placed near the checkout registers, and so on. Saleswere checked at specified times in each store exactly four minutes. Theresults were:

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The confidence interval for the population mean can be computed even if the sample size is small.…

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Q1. John Kleman is the host of the KXYX Radio AM drive-time news in Denver. During his morning program, John asked listeners to call in and discuss current local and national news. This moming, john was concerned with the numbers of hours children under 12 years of age watched TV per day. The last 5 callers reported that their children watched the following numbers of hours of hours of TV last night. 3.0 3.5 4.0 4.5 3.0 Would it be reasonable to develop a confidence interval from these data to show the mean number of hours of TV watched? If yes, construct an appropriate confidence interval and interpret the result. If no, why would a confidence interval not be appropriate?

Q1. John Kleman is the host of the KXYX Radio AM drive-time news in Denver. During his morning program, John asked listeners to call in and discuss current local and national news. This moming, john was concerned with the numbers of hours children under 12 years of age watched TV per day. The last 5 callers reported that their children watched the following numbers of hours of hours of TV last night. 3.0 3.5 4.0 4.5 3.0 Would it be reasonable to develop a confidence interval from these data to show the mean number of hours of TV watched? If yes, construct an appropriate confidence interval and interpret the result. If no, why would a confidence interval not be appropriate?

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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Answer question 1. Stepwise for understanding.

Q1. John Kleman is the host of the KXYX Radio AM drive-time news in Denver.
During his morning program, John asked listeners to call in and discuss current
local and national news. This morning, john was concerned with the numbers
of hours children under 12 years of age watched TV per day. The last 5 callers
reported that their children watched the following numbers of hours of hours of
TV last night.
3.0
3.5
4.0
4.5
3.0
Would it be reasonable to develop a confidence interval from these data to
show the mean number of hours of TV watched? If yes, construct an
appropriate confidence interval and interpret the result. If no, why would a
confidence interval not be appropriate?
Q.2 A manufacture of cell phone batteries wants to estimate the useful life of it's
battery (in thousand of hours.) The estimate is the be within 0.10 (100) hours.
Assume 1 95 percent level of confidence and that the standard deviation of the
useful life of the battery is 0.90 (900 hours). Determine the required sample size.
Q3.In a sample of 200 residents of Georgetown country, 120 reported they
believe that country real estate taxes were too high. Developed a 95%
confidence interval that proportioned of residents who believe the tax rate
is too high. Would it be reasonable to conclude that the majority of the
taxpayers feel that the text says I too high.
QA buffalo, your cola distributor is featuring a super-special sale on 12-
packs. She wonders where in the grocery store to place the cola for
maximum attention. Should it be near the front door of the grocery stores.
In the cola section, at the checkout registers, or near the milk and other
dairy products? Four stores, with similar totals sales coopters, or near the
milk and other dairy products?for stores with stacks near the front door, in
another they were placed near the checkout registers, and so on. Sales
were checked at specified times in each store exactly four minutes. The
results were:

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