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In the past, patrons of a cinema complex have spent an average of RM5.00 for popcorn and other snacks, with a standard deviation of RM1.80. The amounts of these expenditures have been normally distributed. Following an intensive publicity campaign by a local medical society, the mean expenditure for a sample of 18 patrons is found to be RM4.20. In a one-tail test at the 0.05 level of significance:
a) Provide complete hypotheses based on the problem above.
b) What test is suitable to be used in this case? Give reason and find the value.
c) Deduce the rejection conclusion of the hypotheses.
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Caselet on McDonald’s vs. Burger King - Waiting time
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Conduct a marketing experiment in which students are to taste one of two different brands of soft drink
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