Using a normal distribution A sample of 25 test schores had

Using a normal distribution. A sample of 25 test schores had a mean of 513. Assume that the population standard deviation os such scores is 100.

1) What is the point estimate for the population parameter?

2) What is the critical value (z or t) for a 95% confidence interval?

3) What is the standard error for this sample?

4) What is the maxiaml margin of error

5) Determine a 95% confidence interval for the population mean test score on the 2014 test