A sample of size 21 will be drawn from a population with mean 6 and standard deviation 5. (a) Is it appropriate to use the normal distribution to find probabilities for x? (b) If appropriate find the probability that x will be greater than 4. th (c) If appropriate find the 20 percentile of x.

MATLAB: An Introduction with Applications
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Author:Amos Gilat
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A sample of size 21 will be drawn from a population with mean 6 and standard deviation 5.
(a) Is it appropriate to use the normal distribution to find probabilities for x
(b) If appropriate find the probability that x will be greater than 4.
(C) If appropriate find the 20
percentile of x.
(a) Is it appFopriate to use the normal distribution to find probabilities for x?
OYes
O No
(b) The probability that x will be greater than 4 is
© The 20
th
percentile ofx is
Transcribed Image Text:A sample of size 21 will be drawn from a population with mean 6 and standard deviation 5. (a) Is it appropriate to use the normal distribution to find probabilities for x (b) If appropriate find the probability that x will be greater than 4. (C) If appropriate find the 20 percentile of x. (a) Is it appFopriate to use the normal distribution to find probabilities for x? OYes O No (b) The probability that x will be greater than 4 is © The 20 th percentile ofx is
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