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1,) Construct a 90% confidence interval for the population proportion if an obtained sample of size...

1,) Construct a 90% confidence interval for the population proportion if an obtained sample of size n = 150 has x = 30

2.) Construct a 95% confidence interval for the population mean if an obtained sample of size n = 35 has a sample mean of 18.4 with a sample standard deviation of 4.5.

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