A college conducts both face to face and online classes that are intended to be identical. Given below is the distribution of the in terms of marks scored in a statistics examination for one of the groups.
On-line Class
0 – 10
10 – 20
20 –30
30 –40
40 –50
50 –60
60 – 70
No. of Students
10
12
16
20
11
6
5
i. Test the hypothesis that this group has been drawn from a population whose mean mark is 32.
ii. Would the result in (i) above change if the 0.01 level of significance was used instead?
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