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When n =20 and p= 0.1, I can approximate the distribution of the sample proportion with a normal distribution with mean 2 and standard deviation 1.34. True or False?
suppose that a point x y is to be chosen at random in the xy-plane where x and y are independent random variables and
a pew research center poll used telephone interviews to ask american adults if parents are pushing their kids too hard
thickness measurements of a coating process are made to the nearest hundredth of a millimeter. the thickness
raising your grade. suppose you have scores of 60706585 and 85 on exams in a sociology class.a. what is the mean of
Assume that X is normally distributed with a mean of 6 and a standard deviation of 3. Determine the value for x that solves for each of the following.
43 students, 22are sophomores, 28are chemistry majors, and 11are neither. What are the probability that the student is both a sophomore and a chemistry major?
Give an understanding with the difference between a population, a sample, and a sampling distribution. Uus a Java applet and external web sites for comment/reference.
Modern aircraft engines are very reliable. One feature contributing to that reliability is the use of redundancy, where critical components are duplicated so that if one fails, the other will work.
Of the 880 respondents, 171 admitted that at least one light had been red. Follow the four-step process to construct a 95% confidence interval.
a researcher is trying to find out whether there is a difference in the racial mix measured as caucasian asian african
researchers studied the effects of adding an exercise program to dieting in the achievement of weight loss. a sample of
About 40% of the general population donate time and energy to community projects. Suppose 15 people have been randomly selected from a community and each asked whether he or she donates time and energy to community projects.
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