The length of human pregnancies is approximately normal with mean μ = 266 days and standard deviation σ = 16 days. Complete parts (a) through (f). Suppose a random sample of 7 human pregnancies is obtained. Describe the sampling distribution of the sample mean length of pregnancies. The sampling distribution of x̄ is ▼ with μx̄ equals enter your response here and σx̄ equals enter your response here.
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Step 1: The sampling distribution of the sample mean x̄ is approximately normal if the sample size is large enough (n > 30) or if the population distribution is normal. Show more…
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