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1. According to the American Hotel and Motel Association (AHMA), women are expected to account for half of all business travelers by the year 2002. To attract these women business travelers, the AHMA found that 70% offer hair dryers in the bathrooms. Consider a random and independent sample of 20 hotels.
Find the probability that more than 10 but less than 15 of the hotels in the sample offered hair dryers in the bathroom. Round your answer to four decimal places.
2. The local independent party wants to poll registered voters to see the proportion who would consider voting for an independent candidate. They have asked you to tell them how many voters they need to survey to get a 90% confidence level that the true population proportion is within a 0.02 margin of error. How many people do they need to survey to achieve the desired margin of error?
Find a partially ordered set (X, ≤), with as few elements as possible, for which the hypothesis of Zorn's lemma holds (every chain has an upper bound) but which does not have a maximum.
What is the probability that 20 people come over the next three days? (c) What is the probability that 8 people come on exactly one of the next three days?
question 1 nbspin switzerland an insurance agency retail life insurance called savings life insurance sli. the skill to
For good results, you probably need to work with 20 or more securities. Try to include in your model realistic-type sector, industry, and upper bound constraints, but don't make them too tight.
Let the independent r.v.'s X1,. .., Xn be distributed as U(0, 1), and let 1 j n. Use the relevant results in Example 3, and Exercise 1.6(i) in order to derive: i) The conditional p.d.f. of Yj, given Y1;
What is the probability that an employee selected at random will need either corrective shoes or major dental work?
The following data shows the service ratings for eight ramdomly selected small ships, eight randomly selected large ships. All ships are rated on a 100-point scale, with higher valuse indicated better service (traveler Feb 2003)
In each hospital, fifteen patients were treated, each having one of three types of cancer (i.e., there were five patients with each type of cancer). The health of each patient was rated on a ten-point scale after one week, two weeks, and three wee..
30% student take only Chinese, 30 % student take only Maths. It is found that both male n female has the equal chance to wear spectacles. Draw a tree diagram.
Refer to the example concerning the CRM efforts of Caterpillar. Where on the CRM continuum (low-end to high-end) does the company's CRM strategy fi t? Explain your answer.
At a recent meeting of educational researchers comparison were made between the type of college freshmen attend and the numbers who drop out. Use a significance level of .05 and determine if the type of school and the drop out rate are independent.
the generation of children raised in the 1990s and 2000s has been dubbed generation m because of the impact of media on
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