Sunday

March 29, 2015

March 29, 2015

Posted by **Jaz** on Friday, December 6, 2013 at 11:21pm.

- Statistic -
**PsyDAG**, Saturday, December 7, 2013 at 7:32pmFind 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

95% = mean ± 1.96 SEm

SEm = SD/√n

I'll let you do the calculations.

**Answer this Question**

**Related Questions**

statistics - Suppose that the weights of airline passenger bags are normally ...

statistic - A grain mill manufactures 100-pound bags of flour for sale in ...

math2 - If you have a line plot with a bag of nuts(in pounds) and there is 1/8 ...

MAth - Line plot Amy filled bags with nuts. She weighed the bags and made a line...

math - leon weighed a bag of pears. then he added 4 pounds of pears to the bag. ...

six sigma - If the mean value of the weight of a particular brand of dog food ...

Statistics - 9. Assume the weight, W, of a randomly selected adult has a normal...

Statistics - Consider the trash bag problem. Suppose that an independent ...

fractions - Terry weighed his two cats at the veterinarian's office.Boots ...

science - An astronaut who weighed 170 pounds on Earth found that his weight on ...