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Suppose *x* has a distribution with *μ* = 59 and
*σ* = 8.

If the original *x* distribution is *normal*, can
we say anything about the x distribution of random samples of size
16?

Yes, the x distribution is normal with mean μ _{x} = 59
and σ _{x} = 0.5.Yes, the x distribution is normal with
mean μ _{x} = 59 and σ _{x} = Yes, the x
distribution is normal with mean μ _{x} = 59 and σ
_{x} = 2.

Find *P*(55 ≤ *x* ≤ 60). (Round your answer to four
decimal places.)

Answer #1

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Suppose x has a distribution with μ = 22 and
σ = 20.
(a) If random samples of size n = 16 are selected, can
we say anything about the x distribution of sample
means?
Yes, the x distribution is normal with mean μ x = 22
and σ x = 1.3
No, the sample size is too small.
Yes, the x distribution is normal with mean μ x = 22
and σ x = 5
Yes, the x distribution...

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distribution is normal with mean μx =
75 and σx =
0.5. Yes, the x distribution is
normal with mean μx = 75 and
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distribution is normal with mean μx =
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Suppose x has a distribution with μ = 24 and
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1. If random samples of size n = 16 are selected, can
we say anything about the x distribution of sample
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2. If the original x distribution is normal, can
we say anything about the x distribution of random samples
of size 16?
3. Find P(20 ≤ x ≤ 25). (Round your answer to
four decimal places.)
___________________

6.5-4) Suppose x has a distribution with μ =
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we say anything about the x distribution of sample
means?
Yes, the x distribution is normal with mean
μx = 39 and
σx = 5.
No, the sample size is too small.
Yes, the x distribution is normal with mean
μx = 39 and
σx = 1.3.
Yes, the x distribution is normal with mean...

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