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Suppose that 5 of a total of 20 company accounts are in error. An auditor selects a random sample of 5 out of the 20 accounts.
Let X be the number of accounts in the sample that are in error. Is X binomial? If not, what distribution does it have? Explain.
1.you decide to test a friend for esp using a standard deck of 52 playing cards. such a deck contains 13 spades 13
Tablet hardness. A pharmaceutical manufacturer forms tablets by compressing a granular material that contains the active ingredient and various fillers.
breaking strength in kg of the front part of a new vehicle is normally distributed. in 10 trials the breaking strengths
What regression equation would you want to do for banking? Give the y and x variables. Explain why this would be important to know.
A pharmaceutical company has determined that if a new cholesterol-reducing drug is manufactured (introduced to the market) the following probability distribution will describe this drug's contribution to the company profits during the next six mon..
in 2010 91 of households had at least one cell phone. a random sample of 300 households in each of two different
which is preferable as a graphical display for a large quantitative data set a histogram or a stem-and-leaf diagram?
In this problem we want to run a test of goodness of fit to check whether the coats in the consignment follow the indicated probabilities.
in an experiment designed to study the effects of illumination level on task performance subjects were required to
Use sampling with probability proportional to size, with replacement, to estimate the mean or total of a population of your choice. One example would be the average elevation of lakes on a topographic map.
suppose the covariance between y and x is 0.03 and that the variance of y is 0.04 and the variance of x is 0.12. the
At α = 0.10 test the claim that there is a difference in means of the salaries. (a) State the Hypotheses: (b) Compute the Test statistic: (Round off correctly)
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