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

A school adjustment inventory is administered to boys and girls of primary school.Find out weather two groups differ significantly from each other

Number mean Std deviation

Boys 100 32 10

girls 100 30 6

- statistics -
**PsyDAG**, Saturday, October 6, 2012 at 2:16pm
Z = (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 ...
- math - At a sports carnival,the ratio of number of pupils sent by school A,B and...
- 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 - For every 100 births in the U.S., the number of boys follows, ...
- Theories and issues in working with school-age chi - According to the National ...
- Math - Mrs.Smith's class has 12 girls and 8 boys. What percent of he class are ...
- Statistics - The variance of the mathematical scores of a sample of 21 high ...
- statistics - 150 students is 60 kg the mean of body is 70 kg withstandard ...
- English Expression - A: How many boys and girls are there in the park? B: There ...

More Related Questions