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Researchers in retail studies wanted to ?nd out how children and adults react to companies' pricing tactics. They looked at a random sample of 44 10th-grade stu- dents, a random sample of pretested adults consisting of 42 people, and a third sam- ple of 71 adults. For each person, they evaluated the response to a pricing tactic. The reported overall level of signi?cance was p 0.01. A further analysis of differences between every pair of groups was reported as all p <>0.01.9 Interpret these reported ?ndings. What were the degrees of freedom for Factor, Error, and Total?
A national survey found that 17% Of Australians consume milk with their breakfast. However, in Victoria, a large milk producer believes that more than 17% of Victorians consume milk with their breakfast. To test this idea, a marketing organisation ra..
a foreman for an injection-molding firm admits that on 11 of his shifts he forgets to shut off the injection machine on
Find the probability that for a randomly selected office hour, the number of student arrivals is 3. (b) What is the probability that he will get at most 5 students in a randomly selected office hour?
a government official wants to find out how many people will vote for each party in a coming election. she asks a
A multiple regression analysis includes 25 data points and 4 independent variables results in SST = 200 and SSR = 150. the multiple standard error of estimate will be?
the director of a government agency has been given a list of 12 firms cited for unfair labor practices. because of
1. the epa wants to test randomly selected sample of n water specimens and test the mean daily rate of pollution
a firm wanted to see if there was a significant difference between two neighboring communities in terms of the mean
for each of the following find the probability for the given normal distirbutiona. p x gt 4 if x - n 5 52b. p x lt 2
assume that the number of networks errors experienced in a day on a local area network lan is distributed as a poisson
Convinving evidence at the .05 significance level to support the claim that the actual number of cards is an undergrads wallet is greater than 4.09. state the null and alternative hypothesis.
What are some typical applications of the Binomial and the Poisson probability distribution? Explain with examples. When is the Hypergeometric distribution used?
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