Course Title Experimental Designs

Course Code STA643

Activity Assignment # 2

Submission Deadline Date: Monday, Dec 09, 2019

Time: 23:59 Hours (Midnight)

Instructions to attempt assignment:

• You can use/make a single table for all necessary computations.

• Use calculator for calculations.

• Write the complete formulas and all steps, wherever necessary.

• For writing symbols, use MathType software. If you already did not download it, get it from here.

• Make your own attempt, any copy/past; cheating from other student/website may result in ZERO marks and/or assignment cancelation.

Question1:

An Experiment was conducted compare the yields of three varieties of potatoes. Each variety was assigned at random to equal size plots, four times. The yields were as follows:

Varieties |
---|

A | B | C |
---|---|---|

23 | 18 | 16 |

26 | 28 | 25 |

20 | 17 | 12 |

17 | 21 | 14 |

Test the hypothesis that the three verities of potatoes are not different in the yielding capabilities.

Question2:

Complete the ANOVA table.

Source of variation | Sum of squares | Degrees of freedom | Mean square | F |
---|---|---|---|---|

B/W treatments | 4 | 19.860 | 6.90 | |

Error | ||||

Total | 137.040 | 24 |