Question: To calculate the required sample size for a confidence interval to one side of the sample mean or the other, you will need 1-A point

To calculate the required sample size for a confidence interval to one side of the sample mean or the other, you will need

1-A point estimate of the mean

2-A point estimate of the mean, a sample standard deviation, and the alpha (acceptable probability of a type 1 error) (the risk of being wrong)

3-The sample standard deviation, the confidence interval, and the alpha 4-A point estimate of the mean and the sample standard deviation

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