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The campus vets club is having a raffle and is selling 1,200 tickets. If the people on your floor of the dorm bought 200 of those tickets, what is the probability that someone on your floor will hold the winning ticket?
Test the hypotheses that the average household income in the township is greater than $100,000. Hint: Start by stating the null and alternative hypotheses.
Assume the condition of Normality is met for the problem below. I also want to know the following elements: (Please do not use the Student t test, nor a Chi-square test) Two-tailed test ok?
The Minneapolis Tribune ran an article on gender differences in shopping behavior. When 400 women were asked to respond to the question "Where I shop is influenced by which store has a greater variety," 60% answered "Yes.
An investor owns three common stocks. Each stock, independent of the others, has equally likely chances of (1) increasing in value, (2) decreasing in value, or (3) remaining the same value.
What is the weighted mean profit per delivery - a bottling company offers three kinds of delivery service - instant, same day and within 5 days.
Find out: The slack on all activities. The critical activities. The critical path.
Obtain a test statistic and p-value assuming equal variances. Interpret these results.
Twenty-five samples of size 4 resulted in statistics of x=30.0 minutes and R = 2.5 minutes for the company to completely clean a rug. Compute control limits for x- and R-charts and estimate the standard deviation of the process.
For the following independent random samples, use the z-test and the 0.01 level of significance in testing Ho:u1 = u2 versus H1:u1 = u2.
Base on a survey of over 10,000 households, the number of televisions in the home was recorded as given in the table below. Based on the data, find the expected number of televisions in a home.
A Tire company has developed a new type of tire. Extensive testing shows that the number of miles the new tire will run before wearing out is normally distrubuted with a mean of 40,000 miles and a standard deviation of 4,000 miles
Three times each year, the procurement manager at Phoenix contacts National\'s marketing department to place a monthly order for each of the coming four months.
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