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In a survey of 100 people who had recently purchased motorcycles, data on the following variables was recorded:
Gender of purchaser
Brand of motorcycle purchased
Number of previous motorcycles owned by purchaser Telephone area code of purchaser
Weight of motorcycle as equipped at purchase
a. Which of these variables are categorical?
b. Which of these variables are discrete numerical?
c. Which type of graphical display would be an appropri- ate choice for summarizing the gender data, a bar chart or a dotplot?
d. Which type of graphical display would be an appropri- ate choice for summarizing the weight data, a bar chart or a dotplot?
Assume the standard deviation of the distribution is 2.5 pounds. Find the probability that the mean of a sample of 55 families will be between 17 & 18 pounds.
How would you explain the analysis of variance, assuming that your audience has not had a statistics class before?
Find the LCD for the following rational expressions, and convert each rational expression into an equivalent rational expression with the LCD as the denominator.
a survey was completed and the following two wage classes were used 4 - 7 and 7 - 10. what is the class interval for
Compute the proportion p (hat) for your sample Show your computation. Find a 95% confidence interval for p. What is the margin of error in this confidence interval? What is the meaning of this interval with respect to your data and project?
Finally, the when large plant is built and the demand happens to be high, the net present value of the profits $800,000. Draw a decision tree.
Use your calculator to find the Linear Regression model relating h and d to four decimal places. Does the bioclimatic rule, , appear to be approximately correct?
Each week, employees perform an inventory for a sample of products. Certain products are selected and counted. The actual count is compared to the book count (the quantity in the records that should be in stock).
Compute the effect size for each of the following average SAT math scores. Remember SAT math is standardized such that u= 500 and standard deviation =100.
The original simple form of the Connecticut state lottery (ignoring a few gimmicks) awarded the following prizes for each 100,000 tickets sold. The winners were chosen by drawing tickets at random. If you hold one ticket in this lottery, what is y..
the average score of all golfers for a particular course has a mean of 66 and a standard deviation of 5. suppose 100
write a 1050- to 1400-word paper in which you complete the following1 explain the organizational and societal functions
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