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A researcher wishes to estimate the mean number of miles on 3-year-old Chevy Cavaliers.
a. How many cars should be in a sample to estimate the mean number of miles within 2000 miles with 98% confidence, assuming that σ=16,100? 6 pts
b. How many cars should be in a sample to estimate the mean number of miles within 1000 miles with 98% confidence, assuming that σ=16,100?
Utilizing malthus method, Suppose that a culture of bacteria has initial population of n=100. If the population doubles every three days
Let A be a complex number and B a real number. Show that the equation |z|^2+Re(Az)+B=0 has a solution if and only if |A|^2 >= 4B. If this is so, show that the solutions set is a circle or a single point.
Describe a real world situation that could be modeled by a function that is increasing, then constant, then decreasing. What would be the difficulties associated with modeling this situation?
Empirical Probability - Coin Toss. Use the empirical method to estimate the probability. You count 42 heads when you toss a coin 100 times
Binomial Probability: Survey of Drivers, The graph below shows the results of a survey of drivers who were asked to name the most annoying habit of other drivers. You randomly select six people who participate in the survey and ask each one of the..
Increasing sample size will generally eliminate bias in a sample.
A lighthouse is fixed 160 feet from a straight shoreline. A spotlight revolves at a rate of 17 revolutions per minute, (34 rad/min ), shining a spot along the shoreline as it spins. At what rate is the spot moving when it is along the shoreline 16..
When the ticket price is 7 dollars the average attendance is 45000. When the price is dropped to 5 dollars then the average attendance rises to 50000. Find the demand function and how should the ticket price be set to maximize revenue?
How many days would the company have to operate each factory in order to fill an order for exactly 500 baseline and 325 GT cars?
The bucket is filled with 44 pounds of water and is pulled up at a rate of 2.9 feet per second, but water leaks out of a hole in the bucket at a rate of 0.15 pounds per second. Find the work done pulling the bucket to the top of the well.
Products that would be used in calculating GDP include
A covering map is a map p: E -> B with the property that each point b, an element of B, has a neighborhood U such that p^-1(U) is a disjoint union of open sets V_alpha
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