Saturday

October 25, 2014

October 25, 2014

Posted by **mona** on Monday, April 25, 2011 at 1:45pm.

- statistics -
**MathGuru**, Monday, April 25, 2011 at 6:39pmCI99 = mean + or - 2.58(sd/√n)

...where + or - 2.58 represents the 99% confidence interval using a z-table, sd = standard deviation, √ = square root, and n = sample size.

Substitute what you know into the above formula and go from there.

I hope this will help get you started.

**Answer this Question**

**Related Questions**

statistics - A simple random sample of 60 items resulted in a sample mean of 80...

Statistics (42) - A simple random sample of 60 items resulted in a sample mean ...

statistics - A specific study found that the average number of doctor visits per...

statistics - a. A random sample of 25 was drawn from a normal distribution with ...

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

Statistics - Which of the following statements correctly interprets a 95% ...

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

Statistics - A 95% confidence interval for a population mean, ?, is given as (18...

statistics - A random sample of 100 students from a high school was selected. If...

statistics - A specific study found that the average number of doctor visits per...