a. What standard deviation must x¯ have so that 99.7% of all samples give an ?¯ within 0.9 points of ?? Use the 68–95–99.7 rule. b. How large an SRS do you need in order to reduce the standard deviation of x¯ to the value you found?   -standard deviation about 6.5 You want your sample mean x¯ to estimate ? with an error of no more than 0.9 points in either direction.

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A: a) Assume that μ is the population mean age of coyotes.

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A: We have given that  Sample size n =254  Favorable cases x =160 Sample proportion p^=x/n  =160/254 =…

Q: A distribution of values is normal with a mean of 130 and a standard deviation of 16. From this…

A: Solution-: Given: μ=130,σ=16,n=30 Let, X= be the random variable ∴X→ N(μ=130,σ2=162)

Q: A distribution of values is normal with a mean of 50 and a standard deviation of 25. From this…

A: GivenMean(μ)=50standard deviation(σ)=25sample size(n)=31

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A: given data σ = 50.798% ci for μ.E = 5n = ?

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A: Given : See attached file. Use Z-score==X-μσ

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A:

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A: Answer: From the given data, Mean μ = 45601 Standard deviation σ =5294

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A:

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Q: We want to obtain a sample to estimate a population mean. Based on previous evidence, researchers…

A:

Q: We want to obtain a sample to estimate a population mean. Based on previous evidence, researchers…

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Q: What type of question is this what formula is used?   Given a sample with a mean of 151 and a…

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Q: he accompanying​ table, which describes the number of adults in groups of five who reported…

A: x p(x) xp(x) (x-xbar)^2 p(X)*(x-xbar)^2 0 0.192 0 2.027776 0.389333 1 0.367 0.367 0.179776…

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Q: The coefficient of variation (CV%) is a normalized measure of the dispersion of a distribution. It…

A: given data  ∑x = 61.2∑x2 = 444.6n = 16cv% = ?

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Q: From sample with n=24, the mean number of television per household is 2 with a standard deviation of…

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Q: 14. In a population distribution, a score of X = 28 cor- responds to z = -1.00 and a score of X = 34…

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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.