Mathematics, 10.12.2019 03:31 athenajames1221
The average amount of lunch bills per person reimbursed in an international company has been u=$25.5. to test if this average has increased recently, a random sample n=64 of bills is selected. the sample mean and standard deviation are x=$26 and s=$6.25, respectively. conduct the hypothesis test at a significance level alpha=0.05.
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