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In a survey of 100 people who had recently purchased motorcycles, data on the following variables was recorded:
Gender of purchaserBrand of motorcycle purchasedNumber of previous motorcycles owned by purchaser Telephone area code of purchaserWeight 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 appropriate choice for summarizing the gender data, a bar chart or a dotplot?
d. Which type of graphical display would be an appropriate choice for summarizing the weight data, a bar chart or a dotplot?
Instead of testing for some effect (for better or worse), suppose we want to test the claim that astemizole is effective in preventing motion sickness? What is the P- value, and what do you conclude?
suppose that you select 3 cards without replacement from an ordinary deck of playing cards.a if the first card that you
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The purpose of the Final Exam is to assess your understanding of the main statistical concepts covered in this course and to evaluate your ability to critically review a quantitative research article.
Women's heights are normally distributed with mean 63.6 and standard deviation of 2.5 in. A social organization for tall people has a requirement that women must be at least 70 in tall.
Normal 0 false false false EN-US X-NONE X-NONE State the multiple regression ..
the time in minutes between telephone calls at an insurance claims office has the expo- nential probability
If the board wants to set the passing score so that only the best 80% of all applicants pass, what is the passing score? Assume that the scores are normally distributed. Round to the nearest whole number.
a let x have t-distribution with 29 degrees of freedom. what is the distribution of x2?b let x and y be normal.what is
given a normally distributed population with u 80 and 05. what is the probability of randomly drawing a score that
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one strategy for increased sat exam scores is to take the test study on weak areas then retake the test. based on the
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