Question

In an examination given to students at a large number of different schools
the mean grade was 74.5 and SD grade was 8. At one particular school where
200 students took the examination the mean grade was 75.9. Discuss the
significance of this result from the view point of two tailed test at both 5%
and 1% level of significance.

Answer 1

Answer:

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Step-by-step explanation:

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