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Based on past experience, a telemarketing firm has found that calls to prospective customers take an average of 2.0 minutes, with a standard deviation of 1.5 minutes. The distribution is positively skewed, since persons who actually become customers require more of the caller's time than those who are not home, who simply hang up, or who say they're not interested. Albert has been given a quota of 220 calls for tomorrow, and he works an 8-hour day. Assuming that his list represents a simple random sample of those persons who could be called, what is the probability that Albert will meet or exceed his quota?
einarsen et al. 1998 selected an srs of 935 assistant nurses from a norwegian county with 2700 assistant nurses.a total
suppose that the proportion of colorblind people in a certain population is .008 . what is the probability that there
1.a study to compare two types of infant formula was run at two sites one in atlanta and the second in denver. the
assuming that ssy is constant which of the following correlations would have the smallest ssresidual?please explain
1.in a particular game a ball is randomly chosen from a box that contains 3 red balls 1 green ball and 6 blue balls. if
sampling plan for a movie promotion. advertising companies often try to characterize the average user of a clients
Using hypergeometric distribution, determine the probability that the sample of 6 will comprise 2 nonconforming watches?
What is the competitive equilibrium price per ride? What is the equilibrium number of rides per day? What is the minimum number of taxi cabs in equilibrium?
One of the statistics collected is the porportion of time employees forget to include a napkin in the bag. What is the probability that there is no napkin included for a given order?
A random variable X is normally distributed with mu = 60 and standard XXX = 11. What is zscore for X = 71
Women with different educational levels seem to have different occupations. Or is this just chance variation?
a two-tailed test was conducted to determine if the mean age of gymnasts was equal to 16. the test value was 2.04 and
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