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Assume that the box contains 3 defective widgets and 12 acceptable widgets. There are 5 inspectors, each of whom selects a widget from the box at random, inspects it, and then replaces it in the box. Each inspector makes his or her inspection at a different time. What is the probability that at least one inspector will find a defective widget?
30% of college freshmen support increased military spending. If 12 college freshmen are randomly selected, find the probability that more than 5 selected students support increased military spending.
With this important detail, are there any significant differences with LSD?
Teacher asked each of her students how many novels they had read in previous six months. Results are shown below. Create the frequency table for the number of novels read.
Heather Carielli is a former student who earned a master degree at the Univeristy of Arkansas. When she randomly selected 16 new text books in the college book store she found that they had prices with a mean of $70.41 and a standard deviation of ..
The election is one week away. You think you have the election sewn up, but the seem appears to be unraveling. You run a poll, draw a random sample of 500 adults.
In a previous example about the body mass index of young women we developed a 95% confidence interval for the mean body mass index
Determine the point estimate of difference between mean fuel efficiency rating for midsize cars and large cars? Calculate p-value for the hypothesis test.
The lead time is 2 weeks.If you were asked to create an (R,s,S) policy for this, what parameters would you pick? Give your reasons.
Please assist regarding an index based on how people feel about the economy. In this case, the base was 1985 and set at 100.
The linear correlation coefficient, r, measures the strength of the linear relationship the variables in a set of ordered pairs (x,y). What is the maximum and minimum values for r?
Polls showed the two main candidates in the 2004 presidential election were nearly tied on the day before the election. To predict the winner a newspaper would like to have a poll that has margin of error less than 1%. Roughly how large a sample w..
Test, at the significance level of 0.05, whether the mean bacteria count for the plant discharge exceeds that for the upstream location.
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