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A survey showed that the average cost of a hotel room in Dubai is AED 355, but a researcher claims it is less. The researcher
A survey showed that the average cost of a hotel room in Dubai is AED 355,
but a researcher claims it is less. The researcher selects a sample of 30 hotel
rooms and finds that the average cost is AED 350. The standard deviation of the
population is AED 13.6. At = 0.05, is there enough evidence to reject the
claim?
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