Question

choose the correct answer

2.Performance of students of B.E Students in a national level talent search examination was studied. The scores secured by randomly selected students from two colleges, viz., C1 and C2 of a State were analyzed. The number of students randomly selected from C1 and C2 are respectively 500 and 800.Average scores secured by the students selected from C1 and C2 are respectively 58 and 57. Can the samples be regarded as drawn from the identical populations having common standard deviation 2?Test at 5% level of significance. *


a.Calculated value of z=1.73, Null hypothesis accepted at 5% level

b.Calculated value of z=4.78, Null hypothesis accepted at 5% level

c.Calculated value of z=8.77, Null hypothesis rejected at 5% level

d.Calculated value of z=1.73, Null hypothesis rejected at 5% level

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Answer 1

Answer:

i think b). is the correct answer..

Step-by-step explanation:

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