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If a student is chosen at random, find the probability of getting someone who is a man or non-drinker. Round answer to three decimal places. Man: non drinker 135,regular drinker 47, heavy drinker 5, total 187. Woman: non drinker 187 reg drinker 21, heavy drinker 7, total 215. total: non drinkers 322, reg drinker 68, heavy 12, total 402.
Public transportation and the automobile are 2 methods an employee can use to get to work each day. Samples of times recorded for each method are shown. Times are in minutes.
At the 0.05 level of significance, can we reject the possibility that the vehicle-ownership distribution in this community differs from that of the nation as a whole?
a. What was Caterpillar's book debt-to-value ratio? Please show explanation for understanding.
Suppose that each adult subject in an experiment is given either treatment I or treatment II. Prove that the proportion of men among the subjects who receive
Was nineteenth-century globalization merely an extension of European imperial and industrial expansion, or did it reflect unique developments within other societies globally? Use secondary sources and at least FIVE (5) primary documents.
It is estimated that 55% of the freshmen entering a particular college will graduate from that college in four years. a. For a random sample of 5 entering freshmen, what is the probability that exactly 3 will graduate in four years?
Suppose that 245 such companies are selected independently and at random. What is the probability that 191 companies in the sample electronically monitor their employees?
The office was supposed to open at 8 a.m. but the clerk Oscar overslept and came in at 10 a.m. What is the probability that no customers came.
a sample of 250 observations is selected from a normal population for which the population standard deviation is known
Run a regression of Y on X in Excel and turn in the output with a note explaining what the coefficients {correlation coefficient (multiple R), standard error, t-statistic and F-statistic} mean.
a) Develop the null and alternative hypothesis. b) What is the p-value? c) At a = 0.05 what is your conclusion?
Global Warming. The Pew Research Center for the People and the Press (http://people-press.org) has asked a representative sample of U.S. adults.
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