computed. 12. Basic Computation: Confidence Interval Suppose x has a mound-shaped distribution with a = 9. A random sample of size 36 has sample mean 20. (a) Check Requirements Is it appropriate to use a normal distribution to compute a confidence interval for the population mean μ? Explain. (b) Find a 95% confidence interval for u. (c) Interpretation Explain the meaning of the confidence interval you computed.

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computed.
12. Basic Computation: Confidence Interval Suppose x has a mound-shaped
distribution with o = 9. A random sample of size 36 has sample mean 20.
(a) Check Requirements Is it appropriate to use a normal distribution to
compute a confidence interval for the population mean μ? Explain.
(b) Find a 95% confidence interval for u.
(c) Interpretation Explain the meaning of the confidence interval you
computed.
Transcribed Image Text:computed. 12. Basic Computation: Confidence Interval Suppose x has a mound-shaped distribution with o = 9. A random sample of size 36 has sample mean 20. (a) Check Requirements Is it appropriate to use a normal distribution to compute a confidence interval for the population mean μ? Explain. (b) Find a 95% confidence interval for u. (c) Interpretation Explain the meaning of the confidence interval you computed.
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