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Question1: Suppose that the mean hourly cost to operate a commercial airplane follows the normal distribution with a mean of $2,275 per hour and a standard deviation of $215.
Calculate the operating cost for the lowest 6% of the airplanes? (Round z value to 2 decimal places. Omit the "$" sign in your response.)
Question2: America West Airlines reports the flight time from Los Angeles International Airport to Las Vegas is 1 hour and 2 minutes, or 62 minutes. Suppose the actual flying time is uniformly distributed between 62 and 77 minutes.
[A] The variance of the flight times is ... (Give your answer to four decimal places.)
[B] The probability the flight time is less than 71 minutes is ... (Give your answer to four decimal places.)
[D] The probability the flight takes more than 68 minutes is ... (Give your answer to 4 decimal places.)
[E] The mean flight time is ... (Give your answer to 1 decimal place.)
Find the number of ways to get following card combinations
A market research organization has found that 40 percent of all supermarket shoppers refuse to cooperate when questioned by its pollsters. If 1,000 shoppers are approached, Find the probability that fewer than 500 will refuse to cooperate?
find the probability based on normal distribution
A recipe uses two eggs, three cups of flour & some other ingredients. The recipe makes enough batter for 6 servings. How many cups of flour will be needed to make enough batter for ten servings?
Provide label values for twin type
Probability problems based on normal distribution
What speed is the lamp's spot moving as it passes the point where it is perpendicular to shore? How fast is the spot moving along the shore when the spot is 1 km from the point at which it is perpendicular?
At the [I.CI level of significance, test the claim that the mean eight of women with Turner's syndrome is less than that of the general female population]
Rate of change over the time intervals .
Estimating the value of a function using 3rd Taylor polynomial and use our error guarantee to give a Plus- or-minus error to your estimate
Find the appropriate tests to use for this study.
The first or second derivative test to show that the critical value is a relative maxima or minima.
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