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A professor of food chemistry at the University of Wisconsin recently developed a new system for keeping frozen foods crisp and fresh: coating them with watertight, edible film. The Pillsbury Company wants to test whether the new product is tasty.
The company collects a random sample of consumers who are given the following three treatments, in a randomly chosen order for each consumer: regular frozen pizza, frozen pizza packaged in a plastic bag, and the new edible-coating frozen pizza (all reheated, of course).
Fifty people take part in the study, and the results include SSTR = 128,899, SSBL = 538,217, and SSE = 42,223,987. (These are ANOVA results for taste scores on a 0-1000 scale.) Based on these results, are all three frozen pizzas perceived as equally tasty?
Syracuse Roadbuilding Company is considering the purchase of a new tandem box dump truck. The truck costs $95,000, and an additional $5,000 is needed to paint it with the firm logo and install radio equipment.
The average age of statistics students nationwide is 22. The standard deviation is 2.5 years. Assume the age is a normally distributed variable. Find the probability that one student selected at random is older than 23.
if you are using the method of least squares for fitting trends in an annual time series containing 25 consecutive
If there is an outage, there is a .05 probability that the resulting losses will be very large, approximately $ 80 million in lost earnings. Also, it is estimated that there is a .95 probability of only slight losses of around $ 1 million. What is..
In the class, there are 17 females (of whom 8 are freshmen) and 16 males (of whom 7 are freshmen). If one student is selected at random, what is the probability of selecting a freshmen or a female?
question wageweb.com exhibits salary data obtained from surveys. it provides compensation information on over 170
In a bank drive-through, there is a single service window and room only for two cars to line-up to wait for service. The mean time between arrivals for drive through customers is 5 minutes. The mean time to complete a customer transaction is 3 min..
Suppose that X1, X2, . . .is a sequence of random variables with E(Xt2) 8 and E(Xt)=µ. a. If X1, X2, . . .is iid with E(Xi2) 8 and EXi=µ, where µis known, whatis the minimum mean squared error predictor of Xn+1in terms of X1, . . . , Xn?
For each year, create a bar chart and a pie chart.
the monthly income of residents of daisy city is normally distributed with a mean of 3000 and a standard deviation of
When redesigning the fighter jet ejection seats to better accommodate women, which probability is more relevant: The result from part (a) or the result from part (b)? Why?
suppose that 4 of the 2 million high school students who take the sat each year receive special accommodations because
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