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http://www.chegg.com/homework-help/questions-and-answers/two-scales-aussieburgers-ltd-used-weigh-25-samples-hamburger-patties-fast-food-restaurant--q6210233 I need this question answer because it has not been answered

Solution

Getting the mean and standard deviation of scale A,

XA = 113.96
sA = 1.135781669

Getting the mean and standard deviation of scale B,

XB = 115.92
sB = 1.115048579

As the mean measurement is closer to 114 in scale A, the scale A is more accurate. [ANSWER]

As the standard deviation of A is greater than B, then B is more precise. [ANSWER]

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As the mean measurement is closer to 114 in scale A, and since the standard deviations didn\'t differ a lot, then SCALE A IS A BETTER SCALE. [ANSWER]