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Starting Date 

Wednesday, February 10, 2016

last date 

Tuesday, February 16, 2016

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Students from Schools A and B are compared on the basis of their scores on an aptitude test. Two random samples of 90 and 100 students are selected from school A and B respectively. The sample means are 76.4 and 81.2, whereas the sample standard deviations are 8.2 and 7.6 respectively. Establish a 98% confidence interval for the difference in population mean scores between students of Schools A and B. 

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simple hai

how?

zara b nai lag rai mjhe to simple

give idea

Please Discuss here about this GDB.Thanks

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here is use a formula

page number ya lecture no bata de

Lecture no 35 

any one if know any hint or answer then plz share

any one if know any hint or answer then plz share... or at least share some idea i cant understand the question,

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