The head ranger of Yellowstone National Park is concerned with issues on park capacity, most notably parking.
Question:
The head ranger of Yellowstone National Park is concerned with issues on park capacity, most notably parking. To get a handle on the situation, the head ranger looks at visitor numbers (in millions) from 2000-2017 and uses a statistical model to summarize and describe the data. Here is what the manager presents at the staff meeting.
SUMMARY OUTPUT | ||||
Regression Statistics | ||||
Multiple R | 0.88502056 | |||
R Square | $%&#@ | |||
Adjusted R Square | 0.76971523 | |||
Standard Error | 0.22353917 | |||
Observations | 18 | |||
ANOVA | ||||
df | SS | MS | F | |
Regression | 1 | 2.889333798 | 2.8893338 | 57.82164343 |
Residual | 16 | 0.799516202 | 0.04996976 | |
Total | 17 | 3.68885 | ||
Coefficients | Standard Error | t Stat | P-value | |
Intercept | 2.56803922 | 0.109928117 | 23.361077 | 8.6168E-14 |
Year | 0.07722394 | 0.010155627 | 7.60405441 | 1.06456E-06 |
When visitor numbers are reported for 2018, the model predicts that they will be approximately ______ million, give or take ______ thousand.
Statistical Reasoning for Everyday Life
ISBN: 978-0321817624
4th edition
Authors: Jeff Bennett, Bill Briggs, Mario F. Triola