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1. Roger Amster teaches an English course in which 40 students are enrolled. After yesterday's class, Roger questioned the 5 students who always sit in the back of the classroom. Three of the 5 said "yes" when asked if they would like A Tale of Two Cities as the next class reading assignment.
a. Identify the population and the sample in this situation.
b. Is this likely to be a representative sample? If not, why not?
2. In studying the performance of the company's stock investments over the past year, the research manager of a mutual fund company finds that only 43% of the stocks returned more than the rate that had been expected at the beginning of the year.
a. Could this information be viewed as representing the nominal scale of measurement? If so, explain your reasoning. If not, why not?
b. Could this information be viewed as representing the ratio scale of measurement? If so, explain your rea- soning. If not, why not?
a committee is to consist of 50 randomly chosen united states senators. find the expected number of different states to
if arrivals occur at a mean rate of 3.6 events per hour the exponential probability of waiting less than 0.5 hour for
What is the marginal revenue equation? Find the output to the nearest thousand cameras that will produce the maximum revenue. What is the maximum revenue?
question a random sample of five accidents resulted in the following number of persons injured 18 1512 19 amp 21.
Discuss the assumptions for using a chi-square test. Research articles using and provide practical examples from the reseach to support your assumptions.
A random variable has the density curve as in the graph below. Find The height of the density curve?
Which route should he take to minimize the probability of being late to the meeting? If he tosses a fair coin to decide on a route and he is late, what is the probability that he took the four-crossing route?
during the past three weeks sales of a brand of medicine have been as followsweeksales171270369using exponential
a local school district claims that the number of school days missed by its teachers due to illness is below the
Descriptive and inferential statistics as well as generally accepted continuous quality improvement (CQI) tools, i.e., charts, tables, and graphs, for evaluation purposes - Please provide a report that the data presents to exective leadership.
A catering service offers 9 appetizers, 8main courses, and 12desserts. A banquet chairperson is to select 8 appetizers, 3main courses, and 4 desserts for a banquet. In how many ways can this be done?.
Construct the 90 percent confidence interval for the proportion of checking account customers who have a Visa card with the bank. (Round your answers to 3 decimal places.)
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