Starting Date 

Wednesday, February 10, 2016

last date 

Tuesday, February 16, 2016


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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Lecture no 35 

Dear Students Don’t wait for solution post your problems here and discuss ... after discussion a perfect solution will come in a result. So, Start it now, replies here give your comments according to your knowledge and understandings....

Please do mention if any of you thinks theres an error

Me also solve in this formula... i think its rite

Aslamu Alykum,

Mohsin bahi, ye Confidence interval 98% ki value 2.33 kia fixed hy?

this is Example in Handout chapter number 35 

this is not the relevant example 

the gdb is based  on the topic CONFIDENCE INTERVAL FOR THE DIFFERENCE BETWEEN THE MEANS OF TWO POPULATIONS and the example is on page 269

is this one?


Confidence interval 98% ki value 2.33 kaisy find karin gy?

how to solve this error



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