Monday

January 26, 2015

January 26, 2015

Posted by **K** on Wednesday, April 3, 2013 at 1:40pm.

- Stastics -
**MathGuru**, Wednesday, April 3, 2013 at 9:14pmUse a one-sample z-test.

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

Note: Standard deviation is the square root of the variance.

Check a z-table at .05 level of significance for a one-tailed test.

If the z-test statistic exceeds the critical value from the z-table, reject the null. If the z-test statistic does not exceed the critical value from the z-table, do not reject the null.

I'll let you take it from here.

**Answer this Question**

**Related Questions**

MATH - There are 32 teams in the NFL. Sixteen of the teams are in the American ...

MATH! URGENT!!! - There are 32 teams in the NFL. Sixteen of the teams are in the...

8th grade math - There are 32 teams in the NFL. Sixteen of the teams are in the ...

Managerial Economics - A)Who has more monopoly power---Wal-Mart or the ...

Economics - repost - assistance is appreciated - A)Who has more monopoly power...

math - A total of four students belong to all three teams, the baseball, ...

Economics - anyone have any thoughts on this? - A)Who has more monopoly power...

math - 1. There are 44 teams in the youth football league. Each team has 28 ...

MATH - There are ten teams in a softball league, witha na average of 14 players ...

statistics - A football coach claims that the average weight of all the opposing...