Sunday

April 20, 2014

April 20, 2014

Posted by **Joshua** on Thursday, October 29, 2009 at 11:48pm.

- Statistics -
**MathGuru**, Saturday, October 31, 2009 at 5:49pmFormula:

CI98 = mean + or - z (sd/√n)

mean = 150; sd = 20; n = 36

Find z using a z-table to represent 98% confidence.

I'll let you take it from here.

**Related Questions**

Statistics - For sample mean x = 150, sample size n = 36 and sample standard ...

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

Statistics - A computer repair service found that a random sample of 45 repair ...

statistics - Suppose a random sample of 36 is selected from a population with a ...

statistics - A simple random sample of 25 has been collected from a normally ...

Statistics - A simple random sample of 25 has been collected from a normally ...

statistics - A simple random sample of 25 has been collected from a normally ...

statistics - Suppose that the percentage returns for a given year for all stocks...

math statistics - The average price of a gallon of unleaded regular gasoline was...

Statistics - he Oil Price Information Center reports the mean price per gallon ...