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Given the hypothesis Ho: u=400, you conduct a sample of 12 observations and obtain a sample mean of 407 and a sample standard deviation of 6. Using a .01 significance level to test to see if you would reject Ho, what would be the value of your critical value? i.e the positive one?
Four different paints are advertised as having the same drying time. To check the manufacturer's claims, five samples were tested for each of the paints.
Agricultural researchers are studying three different ways of planting peanuts to determine whether significantly different levels of production yield will result.
Ten students were sampled at random from a student population. Each was asked how many courses he or she was planning on studying in the upcoming year. The following is a list of the reported data values: 1, 2, 2, 3, 4, 5, 5, 5, 5, 6 What is the vari..
Create probability tree showing all marginal, conditional, and joint probabilities. Create a joint probability table.
Use the above information to calculate the number of watches (units) and the sales dollars we need in order for our flea market business to break even for the day.
One of the most famous probability calculations is called the "birthday problem". In probability theory, the birthday problem or birthday paradox concerns the probability that, in a set of n randomly chosen people
Based on these data, explain whether or not course attendance had any effect on determining of a restaurants violation of health code.
If a statistics professor plans classes so carefully that the lengths of her classes are uniformly distributed between 48.0 and 53.0 minutes what is the probability that a given class period runs greater than 51.25 minutes.
Using the empirical rule what percentage of adults is 25 - 45 has iq score bet 70 and 130.
The Globe Fishery packs shrimp that weigh more than 1.91 ounces each in packages marked" large" and shrimp that weigh less than 0.47 ounces each into packages marked "small"; the remainder are packed in "medium" size packages.
The annual precipitation amounts in certain mountain range are normally distributed with a mean of 88 inches, and a standard deviation of 10 inches.
What is the probability that at least one of the new books is a commercial success?
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