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A person randomly selected 100 checks and recorded the cents portions of those checks. The table below lists those cents portions categorized according to the indicated values. Use a 0.025 significance level to test the claim that the four categories are equally likely. The person expected that many checks for whole dollar amounts would result in a disproportionately high frequency for the first category, but do the results support that expectation?
Cents portion of check Number
0-24 60
25-49 13
50-74 15
75-99 12
Assume that the marginal cost to a grocery store of selling a bottle of salad dressing to customers who present coupons versus those who don't is identical and equal to $1.50. If the elasticity of demand of coupon holders is 5 versus 1.25 for other c..
Prove the following statement using contraposition: If n, is a positive integer such that n(mod 3) = 2, then n is not a perfect square and find a solution (if it exists) to the linear diophantine equation 234x + 65y = 325.
Adams High School has 174 freshman, 181 sophomores, 214 juniors, and 249 seniors. If two students are selected at random without replacement, what is the probability of selecting a freshman on the first selection and a senior on the second selecti..
Use of trigonometric ratios to find the distance - Two boats leave the port at the same time.
how many of each should she order to maximize her profit if she can spend 1200 on buying costs 800 on selling cost and 500 on delivery costs?
the wood county sheriff classifies crimes by age in years of the criminal and whether the crime is violent or
How can equations and inequalities help a business maximize profit or minimize costs?
What is your average daily balance at the end of the month on your card?
The balance at the end of 20 years is 3 times the balance at the end of 10 years. What is the balance in the account at the end of 20 years?
The edge of a cube was found to be 80 cm with a possible error of 0.3 cm. Use differentials to estimate the maximum possible error in the calculated volume of the cube.
four emergency radios are available for rescue workers but one does not work properly. two randomly selected radios are taken on a rescue mission. let X be the number that work properly between the two.
At a certain factory, approximately q(t) = t^2 + 50t units are manufactured during the first t hours of a production run, and the total cost of manufacturing q units is C(q) = 0.1q^2 + 10q + 400 dollars.
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