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A simple random sample of size n= 39 is obtained from a population with u = 69 and o = 16. a) What must be true regarding the distribution of the population in order to use the normal mo b) Assuming the normal model can be used, determine P(x < 73.2). c) Assuming the normal model can be used, determine P(x 2 70.7). a) Wh

A simple random sample of size n= 39 is obtained from a population with u = 69 and o = 16. a) What must be true regarding the distribution of the population in order to use the normal mo b) Assuming the normal model can be used, determine P(x < 73.2). c) Assuming the normal model can be used, determine P(x 2 70.7). a) Wh

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
Section9.4: Expected Value
Problem 1E: If a game gives payoffs of $10 and $100 with probabilities 0.9 and 0.1, respectively, then the...
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This Question: 1 pt 5 of 10 (5 complete A simple random sample of size n= 39 is obtained from a population with u=69 and o = 16. (a) What must be true regarding the distribution of the population in order to use the normal model to compute probabilities involving the sample me (b) Assuming the normal model can be used, determine P(x<73.2). (c) Assuming the normal model can be used, determine P(x2 70.7). (a) What must be true regarding the distribution of the population? O A. The population must be normally distributed and the sample size must be large. O B. Since the sample size is large enough, the population distribution does not need to be normal. O C. The sampling distribution must be assumed to be normal. O D. The population must be normally distributed. Assuming the normal model can be used, describe the sampling distribution x. Choose the corre answer below. 16 O A. Approximately normal, with u = 69 and o- V39 %3D O B. Approximately normal, with = 69 and = 16 39 O C. Approximately normal, with u: = 69 and o- V16 %3! (b) P(x<73.2) = (Round to four decimal places as needed.) (c) P(x2 70.7)= Round to four decimal places as needed) Click to select your answer(s).
Transcribed Image Text:This Question: 1 pt 5 of 10 (5 complete A simple random sample of size n= 39 is obtained from a population with u=69 and o = 16. (a) What must be true regarding the distribution of the population in order to use the normal model to compute probabilities involving the sample me (b) Assuming the normal model can be used, determine P(x<73.2). (c) Assuming the normal model can be used, determine P(x2 70.7). (a) What must be true regarding the distribution of the population? O A. The population must be normally distributed and the sample size must be large. O B. Since the sample size is large enough, the population distribution does not need to be normal. O C. The sampling distribution must be assumed to be normal. O D. The population must be normally distributed. Assuming the normal model can be used, describe the sampling distribution x. Choose the corre answer below. 16 O A. Approximately normal, with u = 69 and o- V39 %3D O B. Approximately normal, with = 69 and = 16 39 O C. Approximately normal, with u: = 69 and o- V16 %3! (b) P(x<73.2) = (Round to four decimal places as needed.) (c) P(x2 70.7)= Round to four decimal places as needed) Click to select your answer(s).
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