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StatisticsQ&A LibraryThe following table shows the average life expectancy, in years, of a child born in the given year.†YearLife expectancy200577.6200778.1200978.5201178.7201378.8(e) Based on the trend of the regression line, what do you predict as the life expectancy of a child born in 1550? (Round your answer to one decimal place.) yrWhat do you predict as the life expectancy of a child born in 2400? (Round your answer to one decimal places.) yrQuestion

Asked Nov 8, 2019

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The following table shows the average life expectancy, in years, of a child born in the given year.†

Year | Life expectancy |
---|---|

2005 | 77.6 |

2007 | 78.1 |

2009 | 78.5 |

2011 | 78.7 |

2013 | 78.8 |

(e) Based on the trend of the regression line, what do you predict as the life expectancy of a child born in 1550? (Round your answer to one decimal place.)

yr

What do you predict as the life expectancy of a child born in 2400? (Round your answer to one decimal places.)

yr

Step 1

Step-by-step procedure to obtain the regression equation using MINITAB:

- Choose
**Stat > Regression > Fitted Line plot**. - In
**Response**, enter the column containing the response (*Y*) variable as**Life expectancy**. - In
**Predictors**, enter the columns containing the predictor (*X*) variables as**Year**. - Click
**OK**.

Output using the MINITAB software is given below:

Step 2

From the output, the regression equation is **E(t) = –223.0+0.15 t**.

(e)

The predicted value for the life expectancy of a child born in 1550 is,

Step 3

Thus, the predicted value for the life expectancy of a child born in 1550 is **9.5**.

The pre...

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