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:
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:
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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Transcribed Image Text: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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