Suppose a simple random sample of size n= 150 is obtained from a population whose size is N= 25,000 and whose population proportion with a specified characteristic is p = 0.6. 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 becausens0.05N and np(1 – p)< 10.B. Not normal because n s0.05N and np(1 – p) > 10.C. Approximately normal because n<0.05N and np(1 - p) 2 10.D. Approximately normal because ns0.05N and np(1 - p)< 10.Determine the mean of the sampling distribution of p.HA =(Round to one decimal place as needed.)Determine the standard deviation of the sampling distribution of p.(Round to six decimal places as needed.)(b) What is the probability of obtaining x= 93 or more individuals with the characteristic? That is, what is P(p2 0.62)?P(p20.62) =(Round to four decimal places as needed.)(c) What is the probability of obtaining x= 81 or fewer individuals with the characteristic? That is, what is P(p<0.54)?P(ês0.54) =(Round to four decimal places as needed.)

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Answered: Suppose a simple random sample of size…

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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The acceptable level for insect filth in a certain food item is 4 insect fragments (larvae, eggs, body parts, and so on) per 10 grams. A simple random sample of 40 ten-gram portions of the food item is obtained and results in a sample mean of x = 4.8 insect fragments per ten-gram portion. Complete parts (a) through (c) below. (a) Why is the sampling distribution of x approximately normal? A. The sampling distribution of x is assumed to be approximately normal. B. The sampling distribution of x is approximately normal because the population is normally distributed and the sample size is large enough. C. The sampling distribution of x is approximately normal because the population is normally distributed. D. The sampling distribution of x is approximately normal because the sample size is large enough. (b) What is the mean and standard deviation of the sampling distribution of x assuming μ=4 and σ = 4? μx = nothing…
Suppose a simple random sample of sizen3200 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. OA Not normal becausens0.05N and np(1-p) 10. OC. Not normal becausens0.05N and np(1-p) 10. O D. Approximately normal because n<0.05N 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. on = 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.) Clear all Check answer
Suppose that a Math test has a mean score 81 with a standard deviation 10, and samples with size 100 are selecting at random from all test scores. Which of the following statements about the sampling distribution of sample means are true? А. The standard deviation of the sampling distribution of sample means is 0.1. The standard deviation of the sampling distribution of sample means is 1. C. The mean of the sampling distribution of sample means is 9. D. The mean of the sampling distribution of sample means is 81. Е. The standard deviation of the sampling distribution of sample means is 10. B.
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 = 0.8. Complete parts (a) through (c) below. (a) Describe the sampling aistribution or p. Choose the phrase that best describes the shape of the sampling distribution below. A. Approximately normal because n ≤0.05N and np(1-p) ≥ 10. OB. Not normal because n ≤0.05N and np(1-p) < 10. OC. Not normal because n ≤0.05N and np(1-p) ≥ 10. O D. Approximately normal because n ≤0.05N and np(1-p) < 10. Determine the mean of the sampling distribution of p. HA 8 (Round to one decimal place as needed.) p Determine the standard deviation of the sampling distribution of p. GA .028284 (Round to six decimal places as needed.) р (b) What is the probability of obtaining x= 162 or more individuals with the characteristic? That is, what is P(p ≥0.81)? P(p20.81)=(Round to four decimal places as needed.) example Get more help. % 5 ... 6 I'…
Suppose a simple random sample of size n = 36 is obtained from a population that is skewed right with p=87 and o=18 (a) Describe the sampling distribution of x. (b) What is P (x>92.25)? (c) What is P (x≤79.65) ? (d) What is P (85.2 92.25) = 0.0401 (Round to four decimal places as needed.) (c) P (x≤79.65) = 0.0071 (Round to four decimal places as needed.) (d) P (85.2
Suppose a simple random sample of size n= 125 is obtained from a population whose size is N= 25,000 and whose population proportion with a specified characteristic is p= 0.8. 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) 2 10. O B. Approximately normal because ns0.05N and np(1- p) 2 10. O C. Not normal because ns0.05N 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 = (Round to one decimal place as needed.) Determine the standard deviation of the sampling distribution of p. OA = (Round to six decimal places as needed.) (b) What is the probability of obtaining x= 105 or more individuals with the characteristic? That is, what is P(p 20.84)? P(p20.84) = (Round to four decimal places as needed.) (c) What is the probability of obtaining x =…
24
Suppose the lengths of the pregnancies of a certain animal are approximately normally distributed with mean u= 260 days and standard deviation o = 22 days. Complete parts (a) through (f) below. (b) Suppose a random sample of 21 pregnancies is obtained. Describe the sampling distribution of the sample mean length of pregnancies. The sampling distribution of x is normal with H; = 260 and o: = 4.8008. (Round to four decimal places as needed.) (c) What is the probability that a random sample of 21 pregnancies has a mean gestation period of 253 days or less? The probability that the mean of a random sample of 21 pregnancies is less than 253 days is approximately 0.0724. (Round to four decimal places as needed.) Interpret this probability. Select the correct choice below and fill in the answer box within your choice. (Round to the nearest integer as needed.) O A. If 100 independent random samples of size n= 21 pregnancies were obtained from this population, we would expect sample(s) to have…
Suppose a simple random sample of size n = 125 is obtained from a population whose size is N = 30,000 and whose population proportion with a specified characteristic is p = 0.6
Solve for C)
Suppose a simple random sample of size na 150 is obtained from a population whose size is N 25,000 and whose population proportion with a specifed characteristic is p=0.6. 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 QA Not normal because ns0.05N and np(1-p) 10. OB Approximately normal becausens0.05N and np(1-p)< 10. OC. Not nomal because ns0.05N and np(1- p) 1o. o. Approximalely nomal becausens0.0SN and ne(t-pa 10 Determine the mean of the sampling distribuion of p H Round to one decimal place as needed)

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