Hi,

I like to get some help with the part c of the question below:

X1 | X2 | Y |

30 | 12 | 94 |

47 | 10 | 108 |

25 | 17 | 112 |

51 | 16 | 178 |

40 | 5 | 94 |

51 | 19 | 175 |

74 | 7 | 170 |

36 | 12 | 117 |

59 | 13 | 142 |

76 | 16 | 211 |

For this question I had to the do the following:

**a.) Develop an estimated regression equation relating y to x1.**

I understand this part and got equation: y

ˆ = 45.06 + 1.94x

1

**b.) Develop an estimated regression equation relating y to x2.**

I also understand this part and got the equation: y

ˆ = 85.22 + 4.32x

2

**c.) Develop an estimated regression equation relating y to x1 and x2.**

I can't seem to figure out this part, As per the solution the equation is:

yˆ = -18.37 + 2.01x

1 + 4.74x

2

I fail to understand how solution arrives at -18.37, 2.01 and 4.74

Your help is greatly appreciated.

Thanks