Friday

February 27, 2015

February 27, 2015

Posted by **Sally** on Monday, August 15, 2011 at 11:00pm.

- statistics -
**MathGuru**, Tuesday, August 16, 2011 at 10:36amFormula:

CI90 = mean + or - 1.645(sd/√n)

sd = standard deviation

n = sample size

Substitute the values from your problem into the formula and calculate.

**Answer this Question**

**Related Questions**

statistics - a.a statistics practitioner randomly sampled 100 observations from ...

statistics - A statistics practitioner would like to estimate a population mean ...

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

statistics - 1.A magazine reported that 6% of Americans read the news paper ...

Statistics - Calculate the following: a) Determine the sample size necessary to ...

Math - The mean of a sample of 25 was calculated as xbar = 500. The sample was ...

statistics - A statistics practitioner formulated the following hypothesis: Ho: ...

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

statistics - what are the mean and standard deviation of a sampling distribution...

Statistics - An admissions director wants to estimate the mean age of all ...