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Vision
It is generally believed that nearsightedness affects about 12% of all children. A school district tests the vision of 169 incoming kindergarten children. How many would you expect to be nearsighted? With what standard deviation?
Given are the numbers of times the machine was used over each of the last 30 days. Find out the mean number of times the machine was used per day.
In a law office, the average number of billed hours per day was 145 last year. In the first 65 days of this year, the average number of billed hours per week is 152 with a standard deviation of 45 hours.
explain the concept and application of uniform
In regression equation, the value of y-intercept indicates the value of Y when the value of X is zero.
you have a choice of borrowing money from a finance company at 24 compounded monthly or borrowing money from a bank at
The number of newspapers sold daily at a kiosk is normally distributed with a mean of 300 and a standard deviation of 30. Calculate the probability that less than 250 newspapers are sold on a particular day.
Utility functions need not relate to dollar values. Here is a problem in which we know little about five abstract outcomes. What is important, however, is that a person who does know what A to E represent should be able to compare the outcomes..
two cards are drawn from a well-shuffled deck of playing cards from which the spades and clubs have been removed and
a box contains 17 pink 18 purple and 31 red jelly beans. if 13 jelly beans are selected at random what is the
(a) What Z value would be appropriate for a 98%service level? (b) What safety stock should Ross maintain if hewants a 98% service level? (c) What is the adjusted ROP for the brackets?
In your research, you may find that you must compare the means of two sample populations related to one particular variable. For example, you may have population samples from two ethnic groups that you wish to compare against income level. In these c..
Suppose that the probability that a married man votes is 0.45, the probability a married woman votes is 0.4, and the probability a woman votes given that her husband does is 0.6. What is the probability that (a) both vote? (b) A man votes given th..
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