Question

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

Answer #1

Answer:-

Thanks dear student

One group of accounting students took a distance learning class,
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Statistic
Distance
Classroom
Mean scores
x⎯⎯1x¯1
= 9.7
x⎯⎯2x¯2
= 10.9
Sample std. dev.
s1
= 2.7
s2
= 2.5
Number of students
n1
= 21
n2
= 21
(a) consider following hypotheses. Assume
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