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Suppose we know that the population standard deviation for wages (σ) is $15. A random sample...

Suppose we know that the population standard deviation for wages (σ) is $15. A random sample of n = 900 results in a sample mean wage of $50. (10 points)

Provide 95% confidence interval estimate of µ. Interpret the result. What is the value of the margin of error?

Provide 90% confidence interval estimate of µ. What is the value of the margin of error?

Provide 99% confidence interval estimate of µ. What is the value of the margin of error?

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