Tuesday

October 21, 2014

October 21, 2014

Posted by **Bhagya** on Friday, October 5, 2012 at 9:40pm.

Number mean Std deviation

Boys 100 32 10

girls 100 30 6

- statistics -
**PsyDAG**, Saturday, October 6, 2012 at 2:16pmZ = (mean1 - mean2)/standard error (SE) of difference between means

SEdiff = √(SEmean1^2 + SEmean2^2)

SEm = SD/√n

If only one SD is provided, you can use just that to determine SEdiff.

Find table in the back of your statistics text labeled something like "areas under normal distribution" to find the proportion related to the Z score. Relate that to your criterion for significance.

**Answer this Question**

**Related Questions**

MATHS - Two different schools (A and B) have the same number of pupils. The ...

statistics - Please analyze the following data using the T-test for Unpaired ...

Math - For every girl taking classes at the martial arts school, there are 3 ...

statistics - 150 students is 60 kg the mean of body is 70 kg withstandard ...

math - the current ratio of boys to girls at a certain school is 2 to 5 . if 12 ...

statistics - For every 100 births in the U.S., the number of boys follows, ...

Statistics - The variance of the mathematical scores of a sample of 21 high ...

English Expression - A: How many boys and girls are there in the park? B: There ...

Statistics - In planning a family of 4 children assume boys and girls are ...

English - 1. I'm in the third year of middle school. 2. I'm in the third year in...