You want to find the 95 confidence interval for the mean of a ...

[elizabeth18]

You want to find the 95 confidence interval for the mean of a distribution. What technique can
  you use to find this interval?
 
  A) search a table for z scores that occur at 47.5 above the mean, and 47.5 below the mean
  B) calculate the standard deviation of the distribution and multiply by .95
  C) determine the kurtosis of the distribution and compare against a table of means
  D) There is no way to determine a confidence interval for the mean of a distribution.

Question 2

________ are used if researchers want to estimate a specific percentage associated with the range
  of scores in a distribution that is likely to include a particular characteristic of a population, like
  the mean.
 
  A) z scores B) Confidence intervals
  C) Interval estimates D) Mean squares

[srodz]

Answer to Question 1

A

Answer to Question 2

B

[elizabeth18]

Thank you!

[srodz]

Happy to help