Posted by **Barbara** on Sunday, February 28, 2010 at 11:45pm.

Please analyze the following data using the T-test for Unpaired data:

A school district wants to determine if the girls are equal to boys in test scores. They took a random sample of 22 8th grade girls and 24 8th grade boys. The district looked at recent CAT scores and found the mean score for girls to be xbar1 = 25 and the mean score for boys to be xbar2 = 26. The standard deviation for the girls is s1 = 2.2 and for the boys the standard deviation is s2 = 3.4. Is the school district correct in assuming the girls are equal in performance to boys. They are 95% sure their assumption is correct.

## Answer This Question

## Related Questions

- Statistics - The variance of the mathematical scores of a sample of 21 high ...
- Maths - A psychological test was given to 92 teenage boys and 68 teenage girls. ...
- Statistics - A researcher performs a hypothesis test to test the claim that ...
- Math - Nicole drew a circle on the chalkboard that had a radius of 15 cm. Which ...
- statistikc - We want a confidence interval for the mean IQ of all the 7th grade...
- statistics - In a recent study on gender differences in education, a sample of 7...
- Math - There were 45 more boys than girls, 4/5 of the boys and 2/3 of the girls ...
- Statistics - 8. A sample of 65 observations is selected from one population. The...
- statistics - 7. A sample of 40 observations is selected from one population. The...
- statistics - A clinical trial test a method designed to increase probability of ...

More Related Questions