Suppose a simple random sample of size n= 200 is obtained from a population whose size is N=20,000 and whose population proportion with a specified characteristic is p= 0.4. Complete parts (a) through (c) below.(a) Describe the sampling distribution of p.Choose the phrase that best describes the shape of the sampling distribution below.O A. Not normal because ns0.05N and np(1-p)< 10.B. Approximately normal because ns0.05N and np(1-p) 2 10.C. Not normal because n<0.05N and np(1-p) 10.O D. Approximately normal because ns0.05N and np(1-p)<10.Determine the mean of the sampling distribution of p.HA = 0.4 (Round to one decimal place as needed.)Determine the standard deviation of the sampling distribution of p.GA = 0.034641 (Round to six decimal places as needed.)(b) What is the probability of obtaining x = 90 or more individuals with the characteristic? That is, what is P(p20.45)?P(p20.45) = (Round to four decimal places as needed.)

Given Suppose a simple random sample of size n=200 populationwhose size is N=20,000 population…

Answered: termine the standard deviation of the…

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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This Question: 1 pt 8 of 15 (1 complete) A population has a meanu = 135 and a standard deviation o = 25. Find the mean ånd standard deviation of the sampling distribution of sample means with sample size n = 55. The mean is u- = |, and the standard deviation is o- = %3D (Round to three decimal places as needed.) Enter your answer in each of the answer boxes. S Type here to search PrtSco 立

2 Suppose that we assume the population standard deviation is a-Sand we are testing: Ho:p-50 Ha:p>50 Suppose also that we want the following Powers (probability of detection): Power ( =50.25)-.85. Power (,=50.40)-.98. a) How much data is needed to satisfy the first requirement? Answer b) How much data is needed to satisfy the second requirement? )How much data is needed to satisfy both requirements? Aliswer f the blanks and submit
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termine the standard deviation of the sampling distribution of p. = 0.034641 (Round to six decimal places as needed.) ) What is the probability of obtaining x= 90 or more individuals with the characteristic? That is, what is P(p20.45)? %3D 20.45) = (Round to four decimal places as needed.)