Monday

December 22, 2014

December 22, 2014

Posted by **Joel** on Wednesday, March 23, 2011 at 9:48pm.

- Statistics -
**MathGuru**, Thursday, March 24, 2011 at 6:20pmUsing the z-test formula, solve for sample mean:

z = (sample mean - population mean)/(standard deviation divided by the square root of the sample size)

Find z in a z-table using p-value. Population mean is 48. Standard deviation is 3.5 and sample size is 75.

I'll let you take it from here.

**Answer this Question**

**Related Questions**

statistics - if the null hypothesis is that the mean is 3218, the alternative ...

statistics - Given a sample size of 38, with sample mean 660.3 and sample ...

statistics - In performing a hypothesis test, the null hypothesis is population...

STATS - Given a sample size of 18, with sample mean 660.3 and sample standard ...

STAT - Given a sample size of 18, with sample mean 660.3 and sample standard ...

STAT - Given a sample size of 18, with sample mean 660.3 and sample standard ...

Statistics - are the following statements, Ho:=10 and Ha:equal to or less than, ...

Statistics - If my p-value = .322 and my significant level is .05 , then My Null...

Statistics - In an essay of 250-500 words, thoroughly address the following ...

Statistics - A statistical test is performed, and its P-value turns out to be ...