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Assume the marketing research firm sends questionnaires to 10 different companies. Suppose that each company, independently of others, returns its completed questionnaire with probability 0.40, determine the probability that 5 or less questionnaires will be returned? Compute also probability that 7 or more questionnaires will be returned.
For the samples summarized below, test the hypothesis at =0.05 that the two variancees are equal.
How many boxes must the processor sample to be 95 percent confident that the sample mean does not differ from the population mean by more than 0.2 pounds?
Find would be answer to part(a) if there were only single server which can serve customers twice as fast (i.e, with service rate four customers per hour)?
Management of a company is considering adopting a bonus system to increases production. One suggestion is to pay a bonus on the highest 5 percent of production based on past experience.
Draw a scatter diagram. Based on the scatter diagram, does there appear to be any relationship between the number assemblers and production? Explain.
Assume that 60 percent of the voters in a particular region support a candidate. Find the probability that a sample of 1,000 voters will yield a sample proportion in favor of the candidate within 4 percentage points of the actual proportion.
You own a $46,000 portfolio comprised of four stocks. The values of stocks A, B, and C are $5,600, $16,700, and $11,400, respectively. What is the portfolio weight of stock D?
Determine percentage of employees has 5 dependents? Of all employees which have at least one dependent, determine percentage has more than one?
If random samples of size of 75 is selected, the standard error of the proportions of student in the sample, who are minority students is
Based on the empirical data determine the following probabilities:
Assume the risk-free interest is 5%. If WT borrows $100 million today at this rate and uses the proceeds to pay an immediate cash dividend, what will be the market value of its equity just after the dividend is paid, according to MM?
Do men and women have different beliefs on the ideal number of children in a family? Based on the following GSS2008 Data and the obtained t statistics, what would you conclude?
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