Suppose a simple random sample of size n = 81 is obtained from a population that is skewed right with u = 82 and o = 18. (a) Describe the sampling distribution of x. (b) What is P (x> 84.3)? (c) What is P (xs77.1)? (d) What is P (79.8 84.3) = (Round to four decimal places as needed.) (c) P (xs77.1) = (Round to four decimal places as needed.) (d) P (79.8
Suppose a simple random sample of size n = 81 is obtained from a population that is skewed right with u = 82 and o = 18. (a) Describe the sampling distribution of x. (b) What is P (x> 84.3)? (c) What is P (xs77.1)? (d) What is P (79.8 84.3) = (Round to four decimal places as needed.) (c) P (xs77.1) = (Round to four decimal places as needed.) (d) P (79.8
MATLAB: An Introduction with Applications
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
Transcribed Image Text:Suppose a simple random sample of size n= 81 is obtained from a population that is skewed right with u = 82 and o = 18.
(a) Describe the sampling distribution of x.
(b) What is P (x > 84.3) ?
(c) What is P (xs77.1)?
(d) What is P (79.8 <x< 86.1) ?
(a) Choose the correct description of the shape of the sampling distribution of x.
O A. The distribution is uniform.
O B. The distribution is skewed right.
C. The distribution is skewed left.
D. The distribution is approximately normal.
O E. The shape of the distribution is unknown.
Find the mean and standard deviation of the sampling distribution of x.
(Type integers or decimals. Do not round.)
(b) P (x> 84.3) = (Round to four decimal places as needed.)
(c) P (xs77.1) =| (Round to four decimal places as needed.)
(d) P (79.8 <x< 86.1) = (Round to four decimal places as needed.)
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