The table shows the approximate U.S. population size (in millions) at 10-year intervals beginning in 1900. Let
Question:
= 81.14 Ã 1.1339x.
a. Show that the predicted population sizes are 81.14 million in 1900 and 323.3 million in 2010.
b. Explain how to interpret the value 1.1339 in the prediction equation.
c. The correlation equals 0.98 between the log of the population size and the year number. What does this suggest about whether or not the exponential regression model is appropriate for these data?
Transcribed Image Text:
U.S. population sizes (in millions) from 1900 to 2010 Populatlorn Size Populatlon Population Size Ye Size Year 1900 76.2 1940 132.1 1980 226.5 1910 92.2 1950 150.7 1990 248.7 1920 106.0 1960 179.3 2000 281.4 1930 122.8 1970 203.3 2010 308.7
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a y 8114 11339 0 8114 million y 8114 11339 11 32326 mill...View the full answer
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Related Book For
Statistics The Art And Science Of Learning From Data
ISBN: 9780321755940
3rd Edition
Authors: Alan Agresti, Christine A. Franklin
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