Mathematics, 21.04.2020 20:32 dmccarthey90
"Suppose that an automobile manufacturer advertises that its new hybrid car has a mean gas mileage of 50 miles per gallon. You take a simple random sample of 30 hybrid vehicles and test their gas mileage. You find that in this sample, the average is x = 47 miles per gallon with a standard deviation of s = 5.5 miles per gallon. Does this indicate that the advertiser’s statement is too high, with = 0.1 ?"
Answers: 2
Mathematics, 21.06.2019 19:40, ashley24109
The weights of broilers (commercially raised chickens) are approximately normally distributed with mean 1387 grams and standard deviation 161 grams. what is the probability that a randomly selected broiler weighs more than 1,425 grams?
Answers: 2
Mathematics, 21.06.2019 21:00, Liantic8738
Oliver read for 450 minutes this month his goal was to read for 10% more minutes next month if all of her medicine go how many minutes will you read all during the next two months
Answers: 3
"Suppose that an automobile manufacturer advertises that its new hybrid car has a mean gas mileage o...
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