A person closed his account in investment scheme by withdrawing Rs. 10,000. One year ago he had withdrawn Rs. 6,000. Two years ago he
had withdrawn Rs. 5,000. Three years ago he
had not withdrawn any money. How much
money had he deposited approximately at the
time of opening the account 4 years ago, if the
annual simple interest is 10%.
[CMAT 2012
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A. find the power of the test, when the null hypothesis assumes a population mean of mu = 450, with a population standard deviation of 156, the sample size is 5 and the true mean is 638.47 with confidence intervals of 95 b. find the power of the test, when the null hypothesis assumes a population mean of mu = 644, with a population standard deviation of 174, the sample size is 3 and the true mean is 744.04 with confidence intervals of 95% c. find the power of the test, when the null hypothesis assumes a population mean of mu = 510, with a population standard deviation of 126, the sample size is 10 and the true mean is 529.44 with confidence intervals of 95