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The percentage of women in the work force has increased tremendously during the past few decades. Whereas only 35% of all employees in the United States in 1970 were women, this percentage is now 49% (Bloomberg Business week, January 9-January 15, 2012). Suppose that currently 49% of all employees in the United States are women. Find the probability that in a random sample of 400 employees, the number of women is b. less than 190 c. 210 to 220
In a study of check out scanners, 5 of 675 items were found to be overcharges, test at the 0.05 significance level, the claim that with scanners, 5% of sales are overcharges.
What advice would you give to the international psychologist about ways to redesign this study that might improve the chances of detecting an effect of noise on the verbal learning task?
According to recent surverys, 53% of households have personal computers. if a random sample of 175 households is selected, what is the probability that more then 75 but fewer than 110 have a personal computer?
Before 1918, in a random sample of 11 wolves spotted in the region, what is the probability that 8 or more were male?
what results in your departments seem to be correlated or related to other activities? how could you verify this?
If writing scores for population have standard deviation of s = 20, does sample give sufficient evidence to conclude that new composition course has significant effect? Suppose a two tailed test with a = 0.05.
A Russian SVR agent has 45 million dollars which he can spend to bribe academics, politicians, and bloggers to spread disinformation and to promote anti-American propaganda
in examining the ability of users to complete a variety of information-seeking tasks on their mobile devices nielsen
the number of power surges at a nuclear plant follows a poisson distribution with an average of .5 power surgers per
1. Consider the function f ( x ) = cx3 for x = 1, 2, 3, 4; where c is a constant. Let X be a discrete random variable with probability function f (x).
Select a legitimate sampling strategy and collect at least 30 data points using your created question or topic. Discuss the sampling strategy in sufficient detail so that someone else could repeat your data collection without any difficulties or q..
A nonmonetary exchange is recognized at fair value of the assets exchanged unless
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