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How do I tell if this is a mean or a proportion 1. Insurance companies track life expectancy information to assist in determining the cost of life insurance policies. The insurance company knows that, last year, the life expectancy of itspolicyholders was 77 years. They want to know if their clients this year have a longer life expectancy, on average, so the company randomly samples some of the recently paid policies to see if the mean life expectancy of policyholders has increased. The insurance company will only change their premium structure if there is evidence that people who buy their policies are living longer than before.Ages:86 75 83 84 81 77 78 79 79 81 76 85 70 76 79 81 73 74 72 83Does this sample indicate that the insurance company should change its premiums because life expectancy has increased? Test an appropriate hypothesis and state your conclusion. Find and interpret a 95% confidence interval.And how do I even start this question
A customer asks how much 50 feet of rope will cost. your chart shows that there are 12.5 feet in a pound of rope. at $ 0.75 a pound, how much is rope?
Marsha bought a boat at a clearance sale from Big Ed's Boats. She bought it for $12,000, which was 35% off of the original price. How much did it cost before Big Ed marked it down?
Find the coordinates of the vertices of the feasible set for the following system of inequalities.
Show by direct computation that the centriod of the triangle with vertices (0,0), (r,0), and (0,h)is the point(r/3,h/3). Verify that this point lies on the line from the vertex (0,0) to the midpoint of the opposite side of the triangle and two-thi..
Explain how the formula for standardizing z-scores forces a given normal distribution to have a mean of 0 and a standard deviation of 1.
Tickets for a show cost $2.00 for adults and $1.50 for children. How many adult and how many children's tickets were sold if a total of 127 tickets were sold for $214?
Use Excel to perform polynomial interpolation on the given data and try to figure out the degree of the polynomial mathematically - perform polynomial interpolation on the following data.
A company that manufactures bicycles has a fixed cost of $ 100,000. It costs $ 100 to produce each bicycle. The selling price per bike is $ 300.
How are the steps for solving equations and inequalities similar? How are the steps for solving equations and inequalities different? Give examples. You must do all parts of this question for credit.
What will it cost Downhill Boards to outsource the finishing process?
Use geometric techniques to estimate the percentage full. Find an upper and lower bound to the percentage full.
Reals with the "finite complement topology:" U open in X if U - X is finite or is all of X. Why compact? Why not regular? Reals with the "countable complement topology:" U open in X if X - U is countable or is all of X. Why not compact? Why not regul..
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