a certain car model has a mean gas mileage of 34 Miles per gallon (mpg) with...
A certain car model has a mean gas mileage of 34 miles per gallon with a standard deviation of 4 mpg. A pizza delivery conpany buys 54 of these cars. What is the probability that the average mileage of the fleet is between 33.3 and 34.3 mpg?
A certain car model has a mean glass milage of 34 miles per gallon (mpg) with a standard deviation 5mpg. A pizza delivery company buys 43 of these cars. What is the probability that the average milage of the fleet is greater than 33.5 mpg? 33) A certain car model has a mean gas mileage of 34 miles per gallon (mpg) with a standard deviation 5 mpg. A pizza delivery company buys 43 of these cars. What is the probability...
A certain car model has a mean gas mil standard deviation 3 mpg. A pizza del probability that the average mileage of 1 car model has a mean gas mileage of 28 miles per gallon (mpg) with a delivery company buys 47 of these cars. What is the mity that the average mileage of the fleet is greater than 27.3 mpg?
Question 11 (Mandatory) (1 point) A certain car model has a mean gas mileage of 29 miles per gallon (mpg) with a standard deviation 4 mpg. A pizza delivery company buys 59 of these cars. What is the probability that the average mileage of the fleet is between 28.9 and 29.6 mpg? O 0.8749 O 0.5497 O 0.4247 O 0.4515 Question 12 (Mandatory) (1 point) Which of the following must be included within a 99% confidence interval for the population...
A certain model of automobile has its gas mileage (in miles per gallon, or mpg) normally distributed, with a mean of 26 mpg and a standard deviation of 4 mpg. Find the probability that a car selected at random has the following gas mileages. (Round your answers to four decimal places.) (a) less than 20 mpg (b) greater than 28 mpg (c) between 24 and 28 mpg
The average gas mileage of a certain model car is 29 miles per gallon. If the gas mileages are normally distributed with a standard deviation of 2.4, find the probability that a car has a gas mileage of between 30 and 35 miles per gallon.
The combined gas mileage of mid-size cars varies with mean 25 miles per gallon (mpg) and a standard deviation of about 5.3 mpg. A particular rental car agency typically has 88 midsize cars in its lot. Assume the distribution of combined gas mileage of mid-size cars is Normal. Find the probability that the combined gas mileage for a randomly selected car in the lot is higher than 25 mpg. Find the probability that the mean combined gas mileage for all...
Gas mileage (measured in miles per gallon) of a new car model is normally distributed with a mean of 95 miles per gallon and a standard deviation of 17 miles per gallon. What is the median of this distribution? A.95 B.75 C.105 D.85 E.65
If the standard deviation of a normally distributed population is 60 and we take a sample of size 25, then what is the (standard error) standard deviation of the sampling distribution of sample means. * Your answer If the mean of a population is 3 points 250 and we take a sample of size 25, then what is the mean of the sampling distribution of sample means. * Your answer 3 points A certain car model has a mean gas...
Problem 5. The mileage of a certain make of car may not be exactly that rated by the manufacturer. Suppose ten cars of the same model were tested for combined city and highway mileages, with the following results: 1 Car No. Observed Mileage 35 40 37 4232 43 38 32 41 34 (mpg) 1 23 4 56 78 9 10 a) Estimate the sample mean and standard deviation of the actual mileage of this particular make of car. Suppose that...