Sunday

December 21, 2014

December 21, 2014

Posted by **Paula** on Friday, April 19, 2013 at 3:30pm.

66.0 75.8 70.9 73.9 63.4 68.5 73.3 65.9

- STATISTICS -
**PsyDAG**, Saturday, April 20, 2013 at 2:07pmFind the mean first = sum of scores/number of scores

Subtract each of the scores from the mean and square each difference. Find the sum of these squares. Divide that by the number of scores to get variance.

Standard deviation = square root of variance

99% = mean ± 2.575 SD

I'll let you do the calculations.

**Answer this Question**

**Related Questions**

STATISTICS - the percentage rates of home ownership for 8 randomdomly selected ...

Statistics - Many states are carefully considering steps that would help them ...

statistics - many states are considering steps that would help them collect ...

statistics - In a study of termite populations in Swaziland, the following data ...

Math - You searched for: Many states are carefully considering steps that would ...

Statistics - The heights in inches of 14 randomly selected adult males in LA are...

stat - for randomly selected adults, IQ scores are normally distributed with a ...

statistics - Use the given information to find the minimum sample size required ...

statistic - 1. A distribution has a standard deviation of 12. Find the z-...

Statistics: Sample Size, Variance and Standard Dev - Sample Size, Variance and ...