EBK STATISTICS FOR THE BEHAVIORAL SCIEN
EBK STATISTICS FOR THE BEHAVIORAL SCIEN
3rd Edition
ISBN: 9781506386249
Author: PRIVITERA
Publisher: VST
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Chapter 16, Problem 16CAP

1.

To determine

Identify the predictor variable in the description.

2.

To determine

Explain the direction of this relationship in words.

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You want to obtain a sample to estimate the proportion of a population that possess a particular genetic marker.  Based on previous evidence, you believe approximately p∗=11% of the population have the genetic marker.  You would like to be 90% confident that your estimate is within 0.5% of the true population proportion.  How large of a sample size is required?n =       (Wrong: 10,603) Do not round mid-calculation. However, you may use a critical value accurate to three decimal places.
2. [20] Let {X1,..., Xn} be a random sample from Ber(p), where p = (0, 1). Consider two estimators of the parameter p: 1 p=X_and_p= n+2 (x+1). For each of p and p, find the bias and MSE.
1. [20] The joint PDF of RVs X and Y is given by xe-(z+y), r>0, y > 0, fx,y(x, y) = 0, otherwise. (a) Find P(0X≤1, 1
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