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Consider the following data drawn from a normal distribution population: 4,8,12,11,14,6,12,8,9,5 a) Construct a 90% confidence...

Consider the following data drawn from a normal distribution population: 4,8,12,11,14,6,12,8,9,5 a)

Construct a 90% confidence interval for the population mean

b) Test the ?0:μ=8, ??:μ≠8, α=0.10

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