# Regression analysis of these data

**Question description**

Kong et al. (2012) studied mutation rates in Icelandic children, specifically looking at mutations in single nucleotide polymorphisms (SNPs). As part of this study, they also recorded the age (in years) of the mother and the father. Part of their data are given below:

Father's Age |
# of SNP Mutations |

16 |
39 |

18 |
41 |

20 |
39 |

19 |
49 |

22 |
50 |

24 |
54 |

24 |
55 |

24 |
61 |

25 |
57 |

28 |
52 |

29 |
54 |

30 |
57 |

32 |
61 |

37 |
67 |

36 |
70 |

34 |
77 |

30 |
83 |

29 |
67 |

33 |
68 |

26 |
54 |

33 |
65 |

A) If you were to do a regression analysis of these data, which would be the dependent variable and which would be the independent variable? Explain your reasoning!

B) What is the regression equation for the relationship between these two variables? For this part, I want you to show me the steps you’d take to calculate the slope and the Y-intercept. You can check your results using Excel or some other program, but you will not get full credit if you simply give me the equation as generated by Excel or another program. (This is all a fancy way of saying you need to calculate this part by hand!).

C) Determine whether the slope of this equation is significantly different from zero, using a regression ANOVA approach.

## Tutor Answer

## Review from our student for this Answer

Brown University

1271 Tutors

California Institute of Technology

2131 Tutors

Carnegie Mellon University

982 Tutors

Columbia University

1256 Tutors

Dartmouth University

2113 Tutors

Emory University

2279 Tutors

Harvard University

599 Tutors

Massachusetts Institute of Technology

2319 Tutors

New York University

1645 Tutors

Notre Dam University

1911 Tutors

Oklahoma University

2122 Tutors

Pennsylvania State University

932 Tutors

Princeton University

1211 Tutors

Stanford University

983 Tutors

University of California

1282 Tutors

Oxford University

123 Tutors

Yale University

2325 Tutors