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University of Massachusetts, Amherst Questions & Answers
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- it is given that e=0.02 and sigma = .75 Find z a/2 for a 99% confidence level
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- I am struggling with finding the confidance interval. for example, A banker wants to know the mean amount of mortgage paid per month by homeowners in an area.
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- At 2:00 pm on a summer day, the temperature is 86 F and the relative humidity is 60%. (These are reasonable values for our area.) (a) What is the density of
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- Concrete has a coefficient of linear expansion of about 8 10-6 /C. If you were to build a bridge from concrete panels, you would have to leave a gap between
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- When you put a jug of juice into a refrigerator, the refrigerator must work to remove the heat and cool down the juice. Suppose your juice is mostly water
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- write the piece wise function for f(t), explain reasons, sketch f(t).
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- I got Y(s) = (k e^-s)/(s^2+2s+1). For the inverse of Y(s) is k u(t-1) t e^-t. Please tell me if it's right. I don't know how to do part b. please explain in
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- For a population, N=14,000 , =129 , and =26 . Find the z value for x=128.60 for n=49 . Round your answer to three decimal places.
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