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An enterprising art historian recently started a new business: the production of walking-tour audiotapes for use by those visiting major cities. She originally produced tapes for eight cities: Paris, Rome, London, Florence, Jerusalem, Washington, New York, and New Haven.
A test was carried out to determine whether all eight tapes (featuring different aspects of different cities) were equally appealing to potential users. A random sample of 160 prospective tourists was selected, 20 per city. Each person evaluated the tape he or she was given on a scale of 0 to 100.
The results were analyzed using one-way ANOVA and included SSTR = 7,102 and SSE = 10,511. Are all eight tapes equally appealing, on average? What can you say about the p-value?
a sample of 15 measurements of the diameter of a shaft gave a mean xbar4.38 inches and a standard deviation s0.06 inch.
A "wild safari" park allows visitors to drive their cars through over 400 acres to see more than 1000 animals roaming freely. The park claims that the probability of some car damage by an animal during a safari drive-thru is 0.65. Suppose 20 cars ..
Suppose in an attempt to develop marketing materials Tyco marketers are interested in determining whether there is a significant difference in the cost of replacing pipeline seals in different countries.
the alphacor company experiences some type of failure on its computer network on average once every 4 hours. assume
The average number of calories in a small chocolate bar is 225. Suppose that the distribution of calories is approximately normal with 10. Find the probability that a randomly selected chocolate bar will less than 200 calories.
Write a brief introductory paragraph regarding the background of data and write paragraph (or two) that specifies the shape of the distribution of the data and reference your graph(s) used to make your decision.
a group of 14 friends got together for a wine contest. each guest brought his or her favorite bottle of pinot noir.
the internal auditing staff of a local manufacturing company performs a sample audit each quarter to estimate the
General scores on academic performance in english language using 60 participant. let the highest score be 90 and 10. use a class inertval of 10 create your class interval and frequency and use the information to answer.
Change the degree of the local polynomial in Cleveland's method to 0 (locally constant) using the argument degree (see Comment 8). Using the cars data from Problem 1, how does changing the degree affect the estimates compared to the locally linear..
What is the probability that the dealer busts and you may assume that the dealer is usign only 1 deck, and that you have not observed the values of any other cards.
a speculator is considering the purchase of a commodity that he reckons has a 60 of increasing in value over the next
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