Quantitative Analysis

SOLUTION TO GROUP ASSIGNMENT

Question 1:

In the hope of preventing ecological damage from oil spills, a biochemical company is developing an enzyme to break up oil into less harmful chemicals. The table below shows the time it took for the enzyme to break up oil samples at different temperatures. The researcher plans to use these data in a regression analysis from predicting the time to break up from the oil temperature.

|Observation Number |1 |2 |3 |4 |5 |6 |

|Oil Temperature (°C) |3 |10 |15 |21 |33 |37 |

|Time to Break up (seconds) |165 |98 |65 |62 |26 |9 |

a. Draw the scatter plot. Be sure to label your axes.

| X-Values | Y-Values | XY | x² |

|3 |165 |495 |9 |

|10 |98 |980 | |

| | | |100 |

|15 |65 |975 | |

| | | |225 |

|21 |62 |1302 | |

| | | |441 |

|33 |26 |858 | |

| | | |1089...