period by male and female college students is believed to be about
the same. An experiment is conducted and data are collected from 29
males and 16 females. The males took an average of two English
courses with a standard deviation of 0.7. The females took an
average of three English courses with a standard deviation of 0.9.
Are the means statistically the same? (Use
answer in the form z or tdf where df is the degrees of freedom.
Round your answer to two decimal places.)
round your answer to two decimal places, and if using the t
distribution round your answer to three decimal places.)