The height, in meters, of adult male African elephants may be assumed to be normally distributed with a mean µ and standard deviation of 0.20. The heights of a sample of 12 such elephants were measured with the following results, in meters. 3.37 3.45 2.93 3.42 3.49 3.67 2.96 3.57 3.36 2.89 3.22 2.91 The mean of the above 12 numbers is 3.27

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Confidence Intervals

When we calculate intervals in probability and statistics, it can be simply termed as finding out a confidence interval. The confidence interval is usually calculated from the data set which is observed. The value of the parameter that needs to be calculated is present here only.