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one group of mathematics students took a distance learning class while another group took the same...

one group of mathematics students took a distance learning class while another group took the same course in a regular classroom. the sample data is available in the table below

statistic distance . regular

Number of students . 40 50

mean scores 30.2 . 42.5

sample std dev 2.4 . 2.5

a) is there a significance difference in the mean scores? test the claim using a= 0.05 significance level

b.) construct a 95% confidence interval for the difference between the two population means

Math   Statistics-And-Probability   
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