A random sample of 100 accounts from a branch of certain bank, has mean balance of Rs. 18,600 with S.D.= 1160. A random sample of 80 accounts from another branch of same bank has mear balance of Rs. 15,200; with S.D.= Rs. 920. Find 90% confidence interval of difference betweer Mean balance of all accounts in both branches.

MATLAB: An Introduction with Applications
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A random sample of 100 accounts from a branch of certain bank, has mean balance of Rs. 18,600
with S.D.= 1160. A random sample of 80 accounts from another branch of same bank has mean
balance of Rs. 15,200; with S.D.= Rs. 920. Find 90% confidence interval of difference between
Mean balance of all accounts in both branches.
Transcribed Image Text:A random sample of 100 accounts from a branch of certain bank, has mean balance of Rs. 18,600 with S.D.= 1160. A random sample of 80 accounts from another branch of same bank has mean balance of Rs. 15,200; with S.D.= Rs. 920. Find 90% confidence interval of difference between Mean balance of all accounts in both branches.
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