Home /
Expert Answers /
Statistics and Probability /
exhibit-10-12-to-test-whether-or-not-there-is-a-difference-between-treatments-a-b-and-c-a-sample-pa309

**Exhibit 10-12**

To test whether or not there is a difference between treatments A, B, and C, a sample of 12 observations has been randomly assigned to the 3 treatments. You are given the results below.

A |
B |
C |

20 |
22 |
20 |

30 |
26 |
17 |

25 |
20 |
18 |

33 |
28 |
25 |

1. Based on Exhibit 10-12, what is the p value?

0.04 |
||

0.86 |
||

0.69 |
||

0.13 |

2. Based on Exhibit 10-12, should you reject or fail to reject the null hypothesis (alpha = 0.05)?

Reject the null hypothesis |
||

Fail to reject the null hypothesis |
||

Eat cookies |
||

None of the above |

We have to test whether or not there is a difference between treatments A, B, and C

Hypothesis :

: There is a not difference between treatments A, B and C

i.e.

: There is difference between treatments A, B and C