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Consider the following data points: (36, 88), (67.25, 224.7), (93, 365.3), (141.75, 687), and(483.8, 4332.1). (This was the data Kepler had when he was trying to find a relationship between thedistance, in millions of miles, of a planet from the sun and the time, in days, it takes for that planet to goonce around the sun.) Rather than fit a line y = b + mx to these data points (xi, yi), fit a line to the points(log xi, log yi). Use your fitted line to guess a simple relationship between x and y. (In many applicationsto science and social science, data is transformed before regression is employed. The most commonly used transformations are power transformations and logarithmic transformations.)
at a certain university 25 of students support the green party. suppose we take samples of size 100 students and are
The following data set represents the amount spent (in dollars) by 45 shoppers at a supermarket. Construct a frequency distribution for the variable, and also report the relative frequencies for each class in your frequency distribution. NOTE: the..
What is the Bayes decision rule and the Bayes classification error - Repeat with two training samples from each category and a single test point in order to find
you want to rent an unfurnished one-bedroom apartment in boston next year. the mean monthly rent for a random sample of
What is an aggressive financing strategy? What are the components of aggressive finance strategies? What is difference between the aggressive and conservative financing model?
a professor at a community college claims that a college algebra student can increase his or her score on an exam if
Using the .01 level, what should the researcher conclude? Solve this problem explicitly using all five steps of hypothesis testing, and illustrate your answer with a sketch showing the comparison distribution, the cutoff (or cutoffs), and the scor..
final averages are typically approximately normally distributed with a mean of 71 and a standard deviation of 8. your
Determine, on the basis of the sample data shown in the following table, whether the true proportion of shoppers favoring detergent A over detergent B is the same in all three cities:
a vertical line is drawn through a normal distribution at z -1.00. the line separates the distribution into two
a simple random sample of 40 salaries of ncaa football coaches has a mean of 415953 and a standard deviation of
a gym knows that each member on average spends 70 minutes at the gym per week with a standard deviation of 20 minutes.
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