A) Given that the sample size is 15 and the standard deviation is 2.3, the variance...

A) Given that the sample size is 15 and the standard deviation is 2.3, the variance is

B) Given that the sample size is 25 and the variance for a data set is 2.8, what is the standard deviation?

C) A recent survey of a new diet cola reported the following percentages of people who liked the taste. Find the weighted mean of the percentages.

Area	% Favored	Number surveyed
1	50	1500
2	40	2500
3	25	500

D) Find the sample variance of the following set of values.
6, 13, 11, 9, 11, 7

Expert Solution

orchestra answered 2 years ago

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Is the standard deviation affected by a sample size increasing?

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