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13. The mean milage for a compact car is 27 miles per gallon with a standard deviation of 3 miles per gallon. A gallon? [0.9016] sample of 60 cars is selected. What is the probability that the sample mean milage is more than 26.5 miles per 14. The mean number of computers in a household is 2.24 with a standard deviation of 1.2. A sample of 85 households is drawn. What is the 30th percentile of the sample mean? [2.1717] 15. 100 people are surveyed. 18 of them have more than one cell phone. What is the sample proportion of people with more than one cell phone? [0.18] 16. 5% of employed adults have two or more jobs. A random sample of 350 employed adults is drawn. What is the probability that less than 6.5% of the sampled individuals have two or more jobs? [0.9011]