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pashok25 [27]
2 years ago
15

A population has a mean of 200 and a standard deviation of 50. Suppose a simple random sample of size 100 is selected and x is u

sed to estimate . a. What is the probability that the sample mean will be within 65 of the population mean
Mathematics
1 answer:
svlad2 [7]2 years ago
6 0

Answer:

z(195) = (195-200)/50 = -0.1

z(205) = (205-200)/50 = +0.1

P(195 < x < 205) = p(-0.1 < z < 0.1) = 0.0797

Step-by-step explanation:

step by step is in they're

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