(A) An architect estimates that the average height of the buildings of 30 or more stories in Suva is at least 500 feet. A random sample of 12 buildings is selected, and the heights in feet are shown. At =0.025, is there enough Evidence to reject the claim?
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(B)A survey by Men’s Health magazine stated that 40% of men said they used alcohol to reduce stress. At 0.10,test the claim that a random sample of 100 men was selected and 30 said that they used alcohol to reduce stress. Use the P-value method
4 answers