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in a random sample 8 cell phones, the mean full retail price was $512.70 and the standard deviation was $178.00. further research suggest that the

in a random sample 8 cell phones, the mean full retail price was $512.70 and the standard deviation was $178.00. further research suggest that the population mean is $426.34. does the t- value for the original aample fall between -t0.95 and t0.95? assume that the population of full retail prices for cell phones is normally distributed

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