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A student in the concrete lab, places 6 low strength concrete test cylinders (3500 psi) with a batch of 9 high strength conrete test cylinders (8000 psi): (show all calculations)
a) if a six cylinders are tested what is the probability that 2 are low strength and 4 are high strength?
b) if 5 cylinders are tested what is the probability that all 5 are high strength?
A random sample of 1000 college students ages from 18-25 revealed that 234 voted for the American Idol. Similarly, 198 college students stated they voted in the 2006 midterm elections.
if a player rolls two dice and get a sum of 3 and 11 she wins 30. if the person gets 7 she wins 15. the cost to play
If sales is the variable you are trying to explain and you have 2 independent variables of color and price. The color coefficient is 100, and the price coefficient is -200.
listed below are measured amounts of lead in the air. the epa has established an air quality standard for lead of 1.5
Construct the sampling distribution of sample means for samples of size 2 selected from this set and construct the sampling distributions of sample ranges for samples of size 2
Computing the probability values using normal distribution - what proportion of licensed drivers are less than 30 years old?
question 1 suppose you own a campsite in chamarel and you wish to increase the site in order to increase your profits.
an industrial hygienist want to be able to estimate the level of carbon monoxide in a plant at the a 0.01 level.
suppose that the null hypothesis is h0 micro 1000 and the alternative hypothesis h1 micro 6 1000. assuming sigma
Choo Choo Paper Company makes various paper products. One of their products is a 30 mils thick paper. In order to ensure that the thickness of the paper meets the 30 mils specification
If battery posts are larger than 3.5 centimeters or less than 3.30 centimeters, they will be scrapped. Determine the proportion scrapped?
What is the probability that a randomly selected from such a hen weighs more than 11.5 grams. What is the probability that the average of a random sample of 25 eggs from such hens will be less than 5.8 grams?
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