A simple random sample of size n-38 is obtained from a population with u-65 and 17.(a) What must be true regarding the distribution of the population in order to use the normal model to compute probabilities involving the sample mean? Assuming that this condition is true, describe the samplingdistribution of x(b) Assuming the normal model can be used, determine P(x694)(c) Assuming the normal model can be used, determine P(x266.1)OD. The population must be normally distributedAssuming the normal model can be used, describe the sampling distribution x. Choose the correct answer belowOA Approximately normal, with ; -65 and o; -1738OB Approximately normal, with p; 65 ande,√17C. Approximately normal, with p; -65 and17√38(b) P(x<60.4)-(Round to four decimal places as needed)

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Answered: A simple random sample of size n-38 is…

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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For a Normal random variable X, with E(X)= 3, Var(X) = 4 Must use Standard Normal Distribuiton Table to compute the following (a) (6points) P(X4.82) (round your answer to 4 decimal places) 4
Suppose a simple random sample of size n = 40 is obtained from a population with μ = 68 and o = 17. (a) What must be true regarding the distribution of the population in order to use the normal model to compute probabilities regarding the sample mean? Assuming the normal model can be used, describe the sampling distribution x. (b) Assuming the normal model can be used, determine P(x <71.1). (c) Assuming the normal model can be used, determine P(x270.1). Click here to view the standard normal distribution table (page 1). Click here to view the standard normal distribution table (page 2). (a) What must be true regarding the distribution of the population? A. Since the sample size is large enough, the population distribution does not need to be normal. OB. The population must be normally distributed. OC. The population must be normally distributed and the sample size must be large. OD. There are no requirements on the shape of the distribution of the population. Assuming the normal model…
A simple random sample of size n= 12 is obtained from a population with u = 63 and o = 14. (a) What must be true regarding the distribution of the population in order to use the normal model to compute probabilities involving the sample mean? Assuming that this condition is true, describe the sampling distribution of x. (b) Assuming the normal model can be used, determine P(x< 66.6). (c) Assuming the normal model can be used, determine P(x2 64.8). (a) What must be true regarding the distribution of the population? O A. The population must be normally distributed. O B. The sampling distribution must be assumed to be normal. OC. Since the sample size is large enough, the population distribution does not need to be normal. O D. The population must be normally distributed and the sample size must be large. Assuming the normal model can be used, describe the sampling distribution x. Choose the correct answer below. O A. Normal, with u; = 63 and o; = 14 14 O B. Normal, with p; = 63 and o; =…
Suppose a simple random sample of size n= 39 is obtained from a population with µ = 62 and o = 19. (a) What must be true regarding the distribution of the population in order to use the normal model to compute probabilities regarding the sample mean? Assuming the normal model can be used, describe the sampling distribution x. (b) Assuming the normal model can be used, determine P(x<65.2). (c) Assuming the normal model can be used, determine P(x2 63.2). Click here to view the standard normal distribution table (page 1) Click here to view the standard normal distribution table (page 2). (a) What must be true regarding the distribution of the population? O A. The population must be normally distributed. O B. The population must be normally distributed and the sample size must be large. O C. Since the sample size is large enough, the population distribution does not need to be normal. O D. There are no requirements on the shape of the distribution of the population. Assuming the normal…
a) & b)
Suppose a simple random sample of size n = 47 is obtained from a population with µ = 68 and o= 16. (a) What must be true regarding the distribution of the population in order to use the normal model to compute probabilities regarding the sample mean? Assuming the normal model can be used, describe the sampling distribution X. (b) Assuming the normal model can be used, determine P(x<71.5). (c) Assuming the normal model can be used, determine P(x ≥ 70.2). Click here to view the standard normal distribution table (page 1). Click here to view the standard normal distribution table (page 2). Assuming the normal model can be used, describe the sampling distribution X. O A. Approximately normal, with μ = 68 and o= Approximately normal, with = 68 and o- = μx ox 16 √47 (b) P(x < 71.5)= (c) P(x ≥ 70.2) = 47 √16 O B. O c. Approximately normal, with μ = 68 and o- = 16 x (Round to four decimal places as needed.) (Round to four decimal places as needed.)
A simple random sample of size n=12 is obtained from a population with μ=62 and σ=17. (a) What must be true regarding the distribution of the population in order to use the normal model to compute probabilities involving the sample mean? Assuming that this condition is true, describe the sampling distribution of ˉx. (b) Assuming the normal model can be used, determineP(ˉx < 66.24). (c) Assuming the normal model can be used, determineP(ˉx ≥ 63.69). 1. P(ˉx<66.4)?
Let X₁, X₂, ..., Xn be a random sample of size n from a geometric distribution for which p is the probabil- ity of success. (a) Use the method of moments to find a point estimate for p. (b) Explain intuitively why your estimate makes good sense.
Suppose a simple random sample of size n=10 is obtained from a population with μ=68 and σ=19. Answer a-c (a) What must be true regarding the distribution of the population in order to use the normal model to compute probabilities regarding the sample mean? Assuming the normal model can be used, describe the sampling distribution x. (b) Assuming the normal model can be used, determine P(x<71.1). (c) Assuming the normal model can be used, determine P(x≥69.2).
What must be true regarding the distribution of the population
Independent random samples, each containing 70 observations, were selected from two populations. The

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