P(( \bar x \) < 35) if μ = 40, σ ÿ = 16, n = 16
a. 0.9944
b. 0.5517
c. 0.4483.4483
d. 0.1056
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Suppose x has a distribution with μ = 35 and σ = 18. (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 = 35 and σ x = 4.5. No, the sample size is too small. Yes, the x distribution is normal with mean μ x = 35 and σ x = 18. Yes, the x distribution...
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Suppose X is a normal random variable with μ = 35 and σ = 10. Find P(13.7 < X < 30.7). a) 0.3170 b) 0.3267 c) 0.3157 d) 0.6375 e) 0.3280 f) None of the above.
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