(a) If random samples of size
n = 16 are selected, can we say anything about the x distribution of sample means?
No, the sample size is too small.
Yes, the x distribution is normal with mean μ x = 60 and σ x = 4.25.
Yes, the x distribution is normal with mean μ x = 60 and σ x = 17
Yes, the x distribution is normal with mean μ x = 60 and σ x = 1.1.
(b) If the original
x distribution is
normal, can we say anything about the x distribution of random samples of size 16?
No, the sample size is too small.
Yes, the x distribution is normal with mean μ x = 60 and σ x = 17.
Yes, the x distribution is normal with mean μ x = 60 and σ x = 1.1.
Yes, the x distribution is normal with mean μ x = 60 and σ x = 4.25.
(c) Find
P(56 ≤ x ≤ 61). (Round your answer to four decimal places.)