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Shubham rajput
Questions (1)
A sample of 400 items is taken from a population whose standard deviation is
10. The mean of the sample is 40. Compute whether
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Answers (1)
A sample of 400 items is taken from a population whose standard deviation is 10. The mean of the sample is 40. Compute whether the sample has come from a population with mean 38. Also calculate 95% confidence interval for mean of the population
