A sample of size 100 is selected from a population with p = .40.a. What is the expected value of p?b. What is the standard error of p?c. Show the sampling distribution of p.d. What does the sampling distribution of p show?

Q: 1. Describe the distribution of sample means (shape, expected value, and standard error) for samples…

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A: Given X~ Nμ,σ2 where σ2 =25 ,σ=595% confidence intervalα=1-0.95   =0.05ℤα2 =1.96 E=1.96

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A: Given, n = 16 a) σm = 8 σm = σn8 = σ16σ = 8 * 4σ = 32

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Q: 1. A study shows that the cost of new textbook is approximately normally distributed with a mean…

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Q: Based on the central limit theorem, what is the mean and standard deviation for the sampling…

A: Correct answer is (1).

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.