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99 percent confidence interval Population mean 24.4 to 38.0 find the mean sample?
if the confidence interval is 24.4 to 38.0 than the average is the exact middle: 31.2, and the margin of error is 6.8
How do you find the confidence intervals?
See: http://en.wikipedia.org/wiki/Confidence_interval Includes a worked out example for the confidence interval of the mean of a distribution. In general, confidence intervals are calculated from the sampling distribution of a statistic. If "n" independent random variables are summed (as in the calculation of a mean), then their sampling distribution will be the t distribution with n-1 degrees of freedom.
Will you find the number 89 in the interval 79-89?
Yes, if it is the closed interval. No, if it is the open interval.
How do you find the interval for a set of data?
You find the the smallest and largest values. The interval is the largest minus the smallest.
How do you find an interval on a graph?
to find an interval you have to subtract the first two number from each other for example 5 10 15 20 the interval for this set of data is 5
