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Please help. Suppose you have a sample size of 30 with a mean 75 and a population standard deviation of 2.9. Based on this, construct

Please help.

Suppose you have a sample size of 30 with a mean 75 and a population standard deviation of 2.9. Based on this, construct a 95% confidence interval for the true population mean. Use z = 2 (rather than 1.96) for your calculations. Give your answers as decimals, to two places [ ] , [ ]

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