what proportion of shoppers at a large appliance store make a big ticket purchase? To estimate proportions within 10% and be 95% confident of the result, how large a sample should be taken?  please find :  test statistic type of distribution  left critical value  right critical value  sample size

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A:

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Q: ick fil a mean wait time is 7 minutes

A: Given: μ=7, σ=2, n=10 The corresponding z-value needed to be computed is,

Q: In its Fuel Economy Guide for 2016 model vehicles, the Environmental Protection Agency provides data…

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Q: A television sports commentator wants to estimate the proportion of citizens who "follow…

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A: Assume that p as the true proportion and n is the sample size.

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A: From the given sample data : n=15 , ƩX= 617 Therefore , The sample mean is , X¯=∑Xn=61715=41.13 Also…

Q: particular vehicle. What is the minimum sample size needed to estimate this within 4 miles with 96%…

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A: Given Information: Mean (u) = $ 410  Standard deviation (s) = $ 105  Sample size (n) = 9

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A: Mean = 11.8 s = 4.6

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Q: A recent study shows that 17 % of a random sample of 1954 cell phone owners do most of their online…

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Q: A television sports commentator wants to estimate the proportion of citizens who "follow…

A: From the provided information, Confidence level = 95% Margin of error = 4% that is 0.04

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Q: In its Fuel Economy Guide for 2016 model vehicles, the Environmental Protection Agency provides data…

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Q: The average amount of weight loss, in pounds, by 10 participants in a six-month weight-reduction…

A: It is given, Mean =24.1 Median =26.4 Hence, Mode =3 Median - 2 Mean

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Q: Grandma Gertrude’s Chocolates, a family owned business, has an opportunity to supply its product for…

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Q: In its Fuel Economy Guide for 2008 model vehicles, the Environmental Protection Agency gives data on…

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Estimation

A new framework of data analysis where the new statistical methods are used for interpreting the results and analyzing the data is known as estimation in statistics.