STA2020F 2006 TEST 1 SOLUTIONS

STA2020F 2006 TEST 1 SOLUTIONS - STA2020F 2006 CLASS TEST 1...

Info iconThis preview shows pages 1–2. Sign up to view the full content.

View Full Document Right Arrow Icon
STA2020F 2006 CLASS TEST 1 SOLUTIONS SECTION A: 1. F 2. F 3. T 4. T 5. F 6. T 7. F 8. T [1 x 8 = 8] SECTION B: Question 1: a. H 0 : the average electricity consumption is the same for all seven days of the week H 1 : at least 2 days of the week have average electricity consumptions which differ (2) b. Source of Variation SS df MS F F crit Between Groups 98.64 6 16.44 4.38 2.42 or 2.34 Within Groups 131.35 35 3.75 Total 229.99 41 (8) c. Test statistic: F = 4.38. Critical value: F 6, 30 = 2.42 and F 6, 40 = 2.34. Since F = 4.38 > 2.42, reject H 0 . Therefore at least two of the population means for the electricity consumption on different days of the week differ. (2) d. normal distribution of data and equal variance of responses in each treatment (2) e. H 0 : the data follows a normal distribution H 1 : the distribution of the data is non-normal (2) f. critical value = 0.137 or 0.14 (1) g. test statistic value of 0.112 not bigger than 0.137, therefore do not reject H 0 and conclude that there is not enough evidence to conclude that the data is not
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Image of page 2
This is the end of the preview. Sign up to access the rest of the document.

This note was uploaded on 04/06/2010 for the course ECON 2342 taught by Professor James during the Three '09 term at ADFA.

Page1 / 3

STA2020F 2006 TEST 1 SOLUTIONS - STA2020F 2006 CLASS TEST 1...

This preview shows document pages 1 - 2. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online