Problem 13BSC

Regression and Predictions. Exercises use the same data sets as Exercises in Section 10-2. In each case, find the regression equation, letting the first variable be the predictor (x) variable. Find the indicated predicted value by following the prediction procedure summarized in Figure.

Figure

Lemons and Car Crashes Find the best predicted crash fatality rate for a year in which there are 500 metric tons of lemon imports.

Lemon Imports |
230 |
265 |
358 |
480 |
530 |

Crash Fatality Rate |
15.9 |
15.7 |
15.4 |
15.3 |
14.9 |

Problem 13BSC

Answer:

Step1 of 3:

We have Exercises use the same data sets as Exercises in Section 10-2. In each case, find the regression equation, letting the first variable be the predictor (x) variable.

Lemon Imports | 230 | 265 | 358 | 480 | 530 |

Crash Fatality Rate | 15.9 | 15.7 | 15.4 | 15.3 | 14.9 |

Step2 of 3:

We need to Find the indicated predicted value by following the prediction procedure summarized in Figure and Find the best predicted crash fatality rate for a year in which there are 500 metric tons of lemon imports.

Step3 of 3:

Consider,

Lemon Imports(x) | Crash Fatality Rate(y) | xy | ||

230 | 15.9 | 3657 | 52900 | 252.81 |

265 | 15.7 | 4160.5 | 70225 | 246.49 |

358 | 15.4 | 5513.2 | 128164 | 237.16 |

480 | 15.3 | 7344 | 230400 | 234.09 |

530 | 14.9 | 7897 | 280900 | 222.01 |

1863 | 77.2 | 28571.7 | = 762589 | 1192.56 |

The equation of the...