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Question: A company claims that the mean net weight of the contents of its All Taste cereal boxes is at least 18 ounces. Suppose you want to test whether or not the claim of the company is true. Explain briefly how you would conduct this test using a large sample. Assume that σ = .25 ounce.
The number of senior citizens (65 and older) in the US in millions n years after 1990 can be estimated using the formula
How many free throws must the second player make in a row in order to confidently reject the same null hypothesis? Use the 95% level of confidence for both players.
Gallons and standard deviation 12 gallons. On a randomly selected day, the probability that the store sells at least 154 gallons is?
In a manufacturing process a random sample of 36 bolts manufactured has a mean length of 3 inches with a standard deviation of .3 inches. What is the 99% confidence interval for the true mean length of the bolt? Please show your work.
With a major expansion planned, Judy projects sales next year to increase to 1,200 radials. What will the demand be each season? Please show work (formulas).
The diameters of peaches in a certain orchard are normally distributed with a mean of 3.85 inches and a standard deviation of 0.42 inches. Show all work.
For a regression that has an r-squared of .39 what is "explained error" of regression equation? What is r-crit for an n of 18, with an alpha of .01, two-tailed?
suppose the present value of a risky investment is approximately normally distributed with mean 10000 and standard
When one thinks of the normal distribution, the first thing that comes to mind is the bell curve and grades. While this is one example of a normal curve that is widely recognized, it is not the only one. Try to come up with a unique normal distrib..
What characteristics of resorts interest them most?
A committee of three is selected at random from a set consisting of five Democrats, eight Republicans, and two Independents.
Assuming this is literally true, how can it be explained? What facts / statistics would you need to know to expose this misleading claim?
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