Suppose x has a distribution with μ = 45 and σ = 13.
(a) If random samples of size n = 16 are selected, can we sayanything about the x distribution of sample means?
Yes, the x distribution is normal with mean μ x = 45 and σ x =13.
Yes, the x distribution is normal with mean μ x = 45 and σ x =3.25.
Yes, the x distribution is normal with mean μ x = 45 and σ x =0.8.
No, the sample size is too small.
(b) If the original x distribution is normal, can we sayanything 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 = 45 and σ x =0.8.
Yes, the x distribution is normal with mean μ x = 45 and σ x =3.25.
Yes, the x distribution is normal with mean μ x = 45 and σ x =13.
(c) Find P(41 ≤ x ≤ 46). (Round your answer to four decimalplaces.)
