Question

Problem 35. Twelve students were given an intensive coaching
in Statistics and in one month five tests were given.
The results of the first and fifth tests are given below. Is
there any improvement

in the results ?
Students
2 3 4 5 6 7. 8 9 10
11 12
First Test : 50 42 51 26 35 42 60 41 70 55 62 38
Fifth Test : 62 40 61 35 30 52 68
52 68 51 84 63 72 50
(Given for y=11, 10:03 =2*201) (M.Com., Jodhpur Univ., 1988)

Answer 1

Answer:

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