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A population of values has a normal distribution with = 9.3 = 9.3 and = 41.4 = 41.4 . You intend to draw a random
A population of values has a normal distribution with
=
9.3
=
9.3
and
=
41.4
=
41.4
. You intend to draw a random sample of sizen
=
25
n
=
25
.
Find the probability that a single randomly selected value is greater than -1.5.
P(X> -1.5) =
Find the probability that a sample of sizen
=
25
n
=
25
is randomly selected with a mean greater than -1.5.
P(M> -1.5) =
Enter your answers as numbers accurate to 4 decimal places. Answers obtained using exactz-scores orz-scores rounded to 3 decimal places are accepted.
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