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# Confidence Interval for Mean: Math achievement scores

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The math achievement scores for 15 female students who just finished high school in the U.S. are as follows.....433, 563, 418, 389, 411, 492, 520, 458, 442, 479, 398, 494, 454, 337, 514

a) Are the scores normally distributed? Explain?

B) Mean =
Variance =
Standard Deviation =

C) Construct a 95% C.I. for the mean achievement score for females

https://brainmass.com/statistics/confidence-interval/confidence-interval-mean-math-achievement-scores-359045

#### Solution Preview

Confidence Interval
The math achievement scores for 15 female students who just finished high school in the U.S. are as follows.....433, 563, 418, 389, 411, 492, 520, 458, 442, 479, 398, 494, 454, 337, 514

a) Are the scores normally distributed ? Explain?
We can ...

#### Solution Summary

The solution provides step by step method for the calculation of confidence interval for population mean. Formula for the calculation and Interpretations of the results are also included. Interactive excel sheet is included. The user can edit the inputs and obtain the complete results for a new set of data.

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