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Temperature and air pollution are known to be correlated. We collect data from two laboratories, in Boston and Montreal. Boston makes their measurements of temperature in Fahrenheit, and Montreal in degrees centigrade. Boston measures pollution in particles per cubic yard of air; Montreal uses cubic meters. Both report a correlation of exactly 0.58 between temperature and pollution. Which of the following is true:
A. Boston really has the higher correlation, because Fahrenheit temperatures are higher than Centigrade.
B. Montreal really has the higher correlation, because cubic meters are bigger than cubic yards.
C. Both cities have the same correlation, because correlation is independent of the units of measurement.
D. We do not know which city has the really higher correlation.
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in using the triangulation method to determine the range of an acoustic source the test equipment must accurately
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A random sample of 50 men, 40% said they preferred walking up stairs than taking the elevator. In a random sample of 40 women
use the one-proportion z-test to perform an appropriate hypothesis test. be sure to check the conditions for using that
The structure of a two-factor study can be presented as a matrix with levels of one factor determining the rows and the levels of the second factor determining the columns. With this structure in mind, describe the mean differences that are evaluated..
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the weight of an organ in adult males has a bell-shaped distribution with a mean of 330grams and a standard deviation
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One environmental group did a study of recycling habits in a California community. It found that 73% of the aluminum cans sold in the area were recycled. (Round your answers to four decimal places.)
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