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A simple random sample of IS obtalned from a population with p (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< 69.2). (c) Assuming the normal model can be used, determine P(x2 67.5). (a) What must be true regarding the distribution of the population? A. The sampling distribution must be assumed to be normal. B. The population must be normally distributed and the sample size must be large. C. Since the sample size is large enough, the population distribution does not need to be normal. D. The population must be normally distributed. Assuming the normal model can be used, describe the sampling distribution x. Choose the correct answer below. 18 A. Normal, with µ̟ = 66 and o; V13 13 = 66 and o- = V18 B. Normal, with Normal, with = 66 and o = 18 (b) P(x< 69.2) = (Round to four decimal places as needed.) %3D (c) P(x2 67.5) =| (Round to four decimal places as needed.)

A simple random sample of IS obtalned from a population with p (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< 69.2). (c) Assuming the normal model can be used, determine P(x2 67.5). (a) What must be true regarding the distribution of the population? A. The sampling distribution must be assumed to be normal. B. The population must be normally distributed and the sample size must be large. C. Since the sample size is large enough, the population distribution does not need to be normal. D. The population must be normally distributed. Assuming the normal model can be used, describe the sampling distribution x. Choose the correct answer below. 18 A. Normal, with µ̟ = 66 and o; V13 13 = 66 and o- = V18 B. Normal, with Normal, with = 66 and o = 18 (b) P(x< 69.2) = (Round to four decimal places as needed.) %3D (c) P(x2 67.5) =| (Round to four decimal places as needed.)

College Algebra
College Algebra
7th Edition
ISBN:9781305115545
Author:James Stewart, Lothar Redlin, Saleem Watson
Publisher:James Stewart, Lothar Redlin, Saleem Watson
Chapter9: Counting And Probability
Section9.3: Binomial Probability
Problem 2E: If a binomial experiment has probability p success, then the probability of failure is...
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A simple random sample of IS obtalned from a population with p (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< 69.2). (c) Assuming the normal model can be used, determine P(x2 67.5). (a) What must be true regarding the distribution of the population? A. The sampling distribution must be assumed to be normal. B. The population must be normally distributed and the sample size must be large. C. Since the sample size is large enough, the population distribution does not need to be normal. D. The population must be normally distributed. Assuming the normal model can be used, describe the sampling distribution x. Choose the correct answer below. 18 A. Normal, with µ̟ = 66 and o; V13 13 = 66 and o- = V18 B. Normal, with Normal, with = 66 and o = 18 (b) P(x< 69.2) = (Round to four decimal places as needed.) %3D (c) P(x2 67.5) =| (Round to four decimal places as needed.)
Transcribed Image Text:A simple random sample of IS obtalned from a population with p (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< 69.2). (c) Assuming the normal model can be used, determine P(x2 67.5). (a) What must be true regarding the distribution of the population? A. The sampling distribution must be assumed to be normal. B. The population must be normally distributed and the sample size must be large. C. Since the sample size is large enough, the population distribution does not need to be normal. D. The population must be normally distributed. Assuming the normal model can be used, describe the sampling distribution x. Choose the correct answer below. 18 A. Normal, with µ̟ = 66 and o; V13 13 = 66 and o- = V18 B. Normal, with Normal, with = 66 and o = 18 (b) P(x< 69.2) = (Round to four decimal places as needed.) %3D (c) P(x2 67.5) =| (Round to four decimal places as needed.)
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