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Question: Suppose a consumer group asked 18 consumers to keep a yearly log of their shopping practices and that the following data represent the number of coupons used by each consumer over the yearly period. Use the data to construct a box-and-whisker plot. List the median, Q1, Q3, the endpoints for the inner fences, and the endpoints for the outer fences. Discuss the skewness of the distribution of these data and point out any outliers.
81 68 70 100 94 47 66 70 82
110 10 60 21 70 66 90 78 85
The study also shows that having more engaged workers leads to increased innovation, productivity and profitability
two wharton professors analyzed 1613234 putts by golfers on the professions golfers associations pga tour and found
suppose that john and david are shooting at a target. the probability that john hits the target is 17 and the
Explain the differences between longitudinal and cross sectional business research studies. Which two types of probability sampling are best suited for business research and statistical data analysis, and why?
Analyze how validity in psychometrics, as you explored in unit 4, is different from a validity scale in a test of personality.
A public health researcher tested the hypothesis that providing new car buyers with child safety seats will also act as an incentive for parents to take other measures to protect their children
If no points are deducted for incorrect answers, what is the probability that the student will score at least 350 points?
Teen smoking. The Centers for Disease Control say that about 30% of high-school students smoke tobacco (down from a high of 38% in 1997).
a statistics professor assigned various grades during the semester including a midterm exam out of 100 points and a
Describe the types of probability -example of classical probability, empirical probability, or subjective probability.
Obtain a test statistic and p -value assuming equal variances. Interpret these results.
How many jackets should the store owner order if she wants to maximize her expected profit?
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