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Given this wolframalpha input concerning the posted speed of 70 mph on the Highway , compute the T test statisticusing the formula ( - )

Given this wolframalpha input concerning the posted speed of 70 mph on the Highway , compute the T test statisticusing the formula

( - ) /( s/sqrt(n) )

Input information : T-test for a population mean hypothesized mean 70 sample mean 65 sample standard deviation 8 sample size 25 T Test | Computed by Wolfram Alpha

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