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Scores of an iq test have a bell shaped distribution with a mean of 100 and a standard deviation of 16. Use the empirical rule to determine the following.
What percentage of people has an IQ score between 84 and 116? What percentage of people has an IQ less than 68 or greater than 132? What percentage of people has an IQ score greater than 116?
Prepare a 90% confidence interval for the true proportion
suppose that the universal address set address of a vertex v in an ordered rooted tree is 3.2.5.1.5. finda the level of
If all the other quantities remain the same, how does the indicated change affect the width of the confidence interval?
Which of the following statistical inference procedure should we use?
Health care reform was one of the major platforms of the Clinton campaign in 1992 and one of the top priorities of his new administration in 1993.
q1 a researcher suggests that male nurses earn more money than female nurses. a survey of 16 male and 20 female
a coin is tossed repeatedly until either tails appears or heads has appeared four times whichever comes first. find the
the national high school sports database reports that players of lacrosse average 55 goals per season. the standard
although the rules of probability are just basic facts about percents or proportions we need to be able to use the
Assume that the population of heights of male college students is approximately normally distributed with mean m of 68 inches and standard deviation s of 3.75 inches. A random sample of 16 heights is obtained.
find the numerical value of the following factors using a interpolation b the formula and c a spreadsheet function.1.
A random sample of 100 observations is obtained from a normally distributed population with a standard deviation of 10. What is a 95% confidence interval for the mean of the population if the sample mean is 40?
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