(SOLVED)Arizona State University PSY PSY MISC The owner of a gasoline station wants to study gasoline purchasing...

The owner of a gasoline station wants to study gasoline purchasing... The owner of a gasoline station wants to study gasoline purchasing habits of motorist sat his station. He selects a random sample of of 60 motorists during a certain week, with the following results: The amount purchased was x¯ = 11.3 gallons, s=3.1 gallons. Ten motorists purchased premium-grade gasoline. α = 0.05. a. Is there evidence that the population mean purchase was greater than 10 gallons? b. Is there evidence that the population mean purchase was less than 10 gallons? c. Is there evidence that the population mean purchase was equal to 10 gallons? d. Is there evidence that less than 20% of all the motorists at the station purchased premium-grade gasoline? What is the p-value? e. Is there evidence that exactly 20% of all the motorists at the station purchased premium-grade gasoline? What is the p-value? f. Is there evidence that more than 20% of all the motorists at the station purchased premium-grade gasoline? What is the p-value?