A simple random sample of size n = 36 is obtained from a population with = 79 and 0 = 18. (a) Describe the sampling distribution of %. (b) What is P (× > 83.95)? (c) What is P (x ≤ 72.25) ? (d) What is P (75.25 < x < 85.3) ?
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Step 1
The sampling distribution of %, denoted by x-bar, follows a normal distribution with mean μ and standard deviation σ/sqrt(n), where μ is the population mean and σ is the population standard deviation. In this case, the population mean μ is 79 and the population Show more…
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