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An airline has a new airplane that will be fitted out for a combination of first and second class passengers. A first class seat will cost $120 on a certain one-way trip and a second class seat $80. The seating capacity of the plane is 200 second class seats. A first class seat takes 1.2 times the floor area of a second-class seat. It is assumed that a first class passenger and his luggage weigh 250 lbs, while a second-class passenger and his luggage weigh 210 lbs. If the weigh limit on the plane is 45,000 lbs, how many seats of each type should be offered it is assumed that all seats in both classes will be sold?
Determine the regression line. What do the coefficients of the regression line tell you about the relationship between mortgage rates and housing starts?
One more box is tested, and if that passes, all bulbs made that day will pass. Find probability that first box fails and second box passes.
womens heights are normally distributed with mean 63.7 in and standard deviation of 2.5 in. a social organization for
the diameters of grapefruits in a certain orchard are normally distributed with a mean of 5.96 inches and a standard
A jar contains 8 red marbles, 9 blue marbles, and 6 green marbles. Two marbles are chosen at random. What is the probability that one is green and the other is blue?
a shipment of 20 tv tubes contains 16 good tubes and 4 defective tubes. three tubes are chosen successively and at
a) Explain why it would be hard to take a Simple Random Sample? b) Describe how to take a cluster sample of chocolate chip cookies.
The number using each entrance is reported below. At the .01 significance level, is there a difference in the use of the four entrances?
Calculate the t test statistic. Can you reject ρ = 0? (e) Use Excel's function =TDIST(t,deg_freedom,tails) to calculate the two-tail p-value.
If we know that the length of time it takes a college student to find a parking spot in library parking lot follows a normal distribution with mean of 3.5 minutes and a standard deviation of 1 minute, determine the probability that a randomly sele..
Describe ways in which the use of MS Excel as a tool for interpreting data can be used by a manager of an organization.
What is the probability that only the first child will have cystic fibrosis? What is the probability that they will have 2 normal sons and 1 daughter with cystic fibrosis?
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