Mathematics, 22.04.2020 04:43 mbatton879
In an effort to estimate the mean dollars spent per visit by customers of a food store, the manager has selected a random sample of 100 cash register receipts. The mean of these was $45.67 with a sample standard deviation equal to $12.30. Assuming that he wants to develop a 90 percent confidence interval estimate, the upper limit of the confidence interval estimate is: Question 47 options: about $47.69 about $2.02 approximately $65.90 None of the above
Answers: 3
Mathematics, 21.06.2019 15:00
An advertising firm has an old computer that can prepare a whole mailing in 6 hours. with the of newer model the job is complete in 2 hours. how long would it take the newer model to do the job alone?
Answers: 1
Mathematics, 21.06.2019 16:00
Abag has more green balls than blue balls, and there is at least one blue ball. let bb represent the number of blue balls and let gg represent the number of green balls. let's compare the expressions 2b2b and b + gb+g. which statement is correct? choose 1
Answers: 2
Mathematics, 21.06.2019 19:00
Acomputer store bought a program at a cost of $10 and sold it for $13. find the percent markup
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Mathematics, 21.06.2019 19:20
1- what do you think the product of a nonzero rational number and an irrational number is? is it rational or irrational? make use of variables, the closure property of integers, and possibly a proof by contradiction to prove your hypothesis.2- why do we have to specify that the rational number must be nonzero when we determine what the product of a nonzero rational number and an irrational number is? if the rational number were 0, would it give us the same result we found in the first question?
Answers: 2
In an effort to estimate the mean dollars spent per visit by customers of a food store, the manager...
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