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Choose the best answer and justify.
(a) What type of data are student ID numbers considered?
(i) interval
(ii) nominal
(iii) ordinal
(iv) ratio
(b) The quality control department of a semiconductor manufacturing company tests every 100th product from the assembly line. This type of sampling is called:
(i) cluster
(ii) convenience
(iii) systematic
(iv) stratified
Forty percent of business travelers carry either a cell phone or a laptop. In a sample of 15 business travelers, what is the probability that:
If we select a student at random, are the event that the student is a girl and the event that the student wears spectacles independent or associated?
Assume the bills are normally distributed with standard deviation $18.71. Find the value that separate the lower 44% of the bills from the rest.
kidney transplant in 2012 have interarrival times that are independent with a common distribution that is exponential
question the financial aid office of a university asks a sample of students about their employment and earnings. the
29. The mean preparation fee H&R Block charged retail customers last year was $183 mit Wall Street Journal, March 7, 2012). Use this price as the population mean and assume the bpopulation standard deviation of preparation fees is $50.
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?
Suppose you are given the average pay of all working people in each of the 50 states of the United States. Do you think that the sample mean of the averages for the 50 states will equal the value given for the entire United States?
audits. between quarterly audits a company checks its accounting procedures to detect problems before they become
Discuss how the statistical application of Pearson r is used for hypothesis testing. Through application of the Spearman Correlation discuss what type of data the Pearson formula can be used for.
what is the probability that a randomly selected human resource manager received over $100,000 in 2007 and what is the probability that the sample mean annual salary falls between $70,000 and $80,000?
the following probability distributions of job satisfaction scores for a sample of information systems is senior
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