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According to a study published by a group of sociologists at the University of Massachusetts, approximately 49% of the Valium users in the state of Massachusetts are white-collar workers. What is the probability that between 482 and 510, inclusive, of the next 1000 randomly selected Valium users from this state would be white-collar workers?
What formula would I use? Can you break it down into baby steps so I can understand how you got the answer?
If the true mean for Saturday sales is now $4500, what is the probability of accepting the (false) null hypothesis in (a) above (the probability of not sharing the manager's concern because of lack of evidence)?
A random sample of 12 equal-sized stores is selected. Some calculations have been done for you: SSx = 400, SSy = 3.0025 and SSxy = 28. What is the value of the sample correlation coefficient?
What is his expected cash balance at the end of the following May and what is the probability that his balance will be negative in one or more month?
Jars have exactly the same number of red, orange, yellow, green, blue, and violet jelly beans. What is the maximum number of jars the factory can produce?
You randomly select six women and ask each if she considers herself a fan of professional baseball. Construct a binomial distribution using n=6 and p=0.39.
As part of a study of corporate employees, the Director of Human Resources for PNC, Inc. wants to compare the distance traveled to work by employees at their office in downtown Cincinnati with the distance for those in downtown Pittsburgh.
Pollsters try to determine whether or not a person is a "likely voter" before they count their opinion in a poll. If we assume 40% of the registered voters will actually vote, in a random sample of 100 registered voters we can be 95% confident tha..
For n=25 make up three values of that would be considered typical for a sample from this population. Make up three data points that would be considered typical from this population.
You are the incoming inspector for potato chips - you are to ensure that each bag has 16 ounces or more in it. You want your testing to be at the level of significance of 0.05.
Given a mean score of 70, standard deviation of 15,percentile of 23.Find the Z score,T score and raw score.
Find the first order statistics at time instance 3. Find the probability at time instance k,the person is at the location m steps to the right of the origin.
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