Solution-Supermarket accepts three types of credit cards

Supermarket accepts three types of credit cards

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Reference no: EM132073317

ADC supermarket accepts three types of credit cards, Master card, Visa and Tembo card. The sales manager is interested in finding out whether there is a difference in the mean amounts charged by customers on the three cards. A random sample of 18 credit cards purchases revealed these credit card amounts. At the level of 0.05, using ANOVA test can we conclude that, there is a difference in the mean amounts charged per purchase on the three cards? Would Tukey-Kramer test be appropriate? Why?

Master card 61 28 42 33 51 56

Visa card 85 56 44 72 98 56 72

Tembo card 61 25 42 31 29

Reference no: EM132073317

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Supermarket accepts three types of credit cards

Reference no: EM132073317

Reference no: EM132073317

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