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A survey of 144 retail stores revealed that the average

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A survey of 144 retail stores revealed that the average price of a microwave was $375 with a standard error of $20 If 95% and 98% confidence intervals were developed to estimate the true cost of the microwave, what differences would they have?

A) Standard errors

B) Interval widths

C) Z-variates

D) Both b and c

Reference no: EM13624774

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