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Suppose a simple random sample of size n = 64 is obtained from a population that is skewed
right with = 78 and = 8 . (a) Describe the sampling distribution of x . (b) What is P ( x > 79.15 ) ?
(c) What is P ( x 75.7 ) ? (d) What is P ( 76.85 < x < 80.1 ) ? B. The distribution is approximately
normal. C. The distribution is skewed left. D. The distribution is uniform. E. The shape of the
distribution is unknown. Find the mean and standard deviation of the sampling distribution of x .
x = x = (Type integers or decimals. Do not round.) (b) P ( x > 79.15 ) = (Round to four decimal
places as needed.) (c) P ( x 75.7 ) = (Round to four decimal places as needed.) (d) P ( 76.85 < x <
80.1 ) = (Round to four decimal places as needed.)

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Suppose a simple random sample of size n-64 is obtained from a populat.pdf

  • 1. Suppose a simple random sample of size n = 64 is obtained from a population that is skewed right with = 78 and = 8 . (a) Describe the sampling distribution of x . (b) What is P ( x > 79.15 ) ? (c) What is P ( x 75.7 ) ? (d) What is P ( 76.85 < x < 80.1 ) ? B. The distribution is approximately normal. C. The distribution is skewed left. D. The distribution is uniform. E. The shape of the distribution is unknown. Find the mean and standard deviation of the sampling distribution of x . x = x = (Type integers or decimals. Do not round.) (b) P ( x > 79.15 ) = (Round to four decimal places as needed.) (c) P ( x 75.7 ) = (Round to four decimal places as needed.) (d) P ( 76.85 < x < 80.1 ) = (Round to four decimal places as needed.)