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1. Locate one of the online job Web sites and pick several job listings. For each job type, discuss one or more situations where statistical analyses would be used. Base your answer on research (Internet, business periodicals, personal interviews, etc.). Indicate whether the situations you are describing involve descriptive statistics or inferential statistics or a combination of both.
2. Suppose Super-Value, a major retail food company, is thinking of introducing a new product line into a market area. It is important to know the age characteristics of the people in the market area.
a. If the executives wish to calculate a number that would characterize the "center" of the age data, what statistical technique would you suggest? Explain your answer.
b. The executives need to know the percentage of people in the market area that are senior citizens. Name the basic category of statistical procedure they would use to determine this information.
c. Describe a hypothesis which the executives might wish to test concerning the percentage of senior citizens in the market area.
two non-repeating letters and two numbers will be used to form an identification badge. the letters are a through k and
An experiment was conducted to compare the reaction times of a group of 10 volunteers (from a psychology class) to a bright light versus the sound of a loud air horn. Find a 95% confidence interval for µD = µX - µY .
suppose it is known that 45 of the population are coalition voters 45 are alp voters and 10 vote for greens. suppose it
A population of scores has p = 44. In this population, an X value of 40 corresponds to z = - 0.50. What is the population standard deviation.
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find the value ofnbspznbspthat would be used to test the difference between the proportions given the following. use g
Depends on the satellite information illustrate what is the expected number µ of real forest fires on the Seward Peninsula.
based on a study of salaries of man and women who drive expensive cars a researcher concludes that owning an expensive
Rivets used to secure the stainless steel sheet metal of aircraft wings are designed to withstand certain shearing forces. It is knownthat because of random variations in location the load on a rivet is Weibull distributed with a scale parameter of 7..
Is the event of choosing card green or blue on the first selection independent of choosing card green or red on the second selection? Why or why not?
Use the relative frequency approach to construct a probability distribution for the number of tests taken.
Give an example of a hypothesis test. State what the Null and the Alternative hypotheses.
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