Question

In a certain bank, there are 15000 deposit accounts. A simple random sample of 50 accounts was drawn. Let y denote the amount in a deposit account. The following data were obtained from the sample: 50 50 2 400, 000 and v 3, 650, 000, 000 i-1 0) Give an unbiased estimate of the average amount in a deposit account (ii) Give 95% confidence limits for the total amount in deposit accounts. (iii) If the true total amount in deposit accounts is 110, 000, 000, comment on the validity of estimation.

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Answer #1

Criven, No.tt accocrnt, dg aam = 50 S. D (S 1 the tolal ampmt n deot accoun 10.025, 12 heneiti) SOO6 1333.33 nCe ce. tre tsue aven ge 133.3 betueem (113?, 8 6) So

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