Question

Finance course grade information regarding male and female students of a large university is shown below (?" and ?! unknown) and assumed unequal).
Sample Size
Sample Mean Grade Sample Variance
Female Male
24 28 29.8 27.3 6,554 3,276
a) Test whether or not the average grade of females is significantly greater than that of males at ⍺=0,05 % significance level?
b) Develop 90 % confidence interval estimate of the difference between grade of the female and male students.
Not: You have to draw the table to see which area that you have to calculate

Answer 1

Solution:

a)

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b)