# Question

You want to build a 90% confidence interval estimate of a population mean. You take a sample of size 100, and find a sample mean of 1300. If the population standard deviation is 25, calculate the

a. Standard error of the sampling distribution of the sample mean.

b. Margin of error for your interval.

a. Standard error of the sampling distribution of the sample mean.

b. Margin of error for your interval.

## Answer to relevant Questions

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