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# GHA 2 - 5[5 Write the equation of the linear...

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STT 200 Section ....... Graded HA #2 Name ________________________ Please write the section number (-1 pt. if missing) The table below lists air fares from Atlanta to selected cities. 1. [5] Make a scatterplot for these data Scatterplot 0 50 100 150 200 250 300 350 400 0 500 1000 1500 2000 2500 1. [5] Find the correlation for these data 2. [5] Compute R 2 = _________ and explain what R 2 means in context. 3. [5] Find the slope of the regression line. ________ Atlanta to: Distance ( x ) Fare ( y ) Baltimore 568 219 Boston 933 222 Dallas 720 249 Denver 1190 308 Las Vegas 1719 252 Miami 589 229 Memphis 327 183 Minneapolis 894 209 New Orleans 419 199 Orlando 392 238 Philadelphia 657 205 St Louis 461 232 Salt Lake 1565 371 Seattle 2150 343

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4. [5] Find the y -intercept of the regression line.
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Unformatted text preview: _________ 5. [5] Write the equation of the linear model (regression line). 7. [5] Graph the regression line on the scatterplot. 8. [5] Estimate the fare for a 200-mile flight. _________ 9. [5] Compute predicted values y ˆ and residuals 10. [5] Plot residuals Atlanta to: Distance ( x ) Fare ( y ) y ˆ Residuals Baltimore 568 219 Boston 933 222 Dallas 720 249 Denver 1190 308 Las Vegas 1719 252 Miami 589 229 Memphis 327 183 Minneapolis 894 209 New Orleans 419 199 Orlando 392 238 Philadelphia 657 205 St Louis 461 232 Salt Lake 1565 371 Seattle 2150 343 Residuals-100-80-60-40-20 20 40 60 80 100 500 1000 1500 2000 2500...
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• Summer '08
• dikong
• Atlanta, Hebrew numerals, Baltimore Boston Dallas, Boston Dallas Denver, Vegas Miami Memphis, Dallas Denver Las

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GHA 2 - 5[5 Write the equation of the linear...

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