Midterm2005

# Midterm2005 - SCHULICH SCHOOL OF BUSINESS YORK UNIVERSITY...

This preview shows pages 1–3. Sign up to view the full content.

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

View Full Document
OMIS1000 MIDTERM EXAMINATION PART I – MULTIPLE CHOICE QUESTIONS (30 MARKS, 2 marks each) Choose the best answer for each question and indicate your answer on the bubble sheet. There is no penalty for guessing 1) The width of a confidence interval estimate for a proportion will be a. narrower when the sample proportion is 0.50 than when the sample proportion is 0.20. b. wider for a sample size of 100 than for a sample size of 50. c. narrower for 90% confidence than for 95% confidence. d. narrower for 99% confidence than for 95% confidence. 2) Which of the following is NOT true about the Student's t distribution? a. It is bell-shaped and symmetrical. b. As the number of degrees of freedom increases, the t distribution approaches the normal distribution. c. It has more area in the tails and less in the center than does the normal distribution. d. It is used to construct confidence intervals for the population mean when the population standard deviation is known. 3)
This is the end of the preview. Sign up to access the rest of the document.

## This note was uploaded on 09/25/2010 for the course OMIS OMIS 1000 taught by Professor Alexandershoumarov during the Fall '09 term at York University.

### Page1 / 10

Midterm2005 - SCHULICH SCHOOL OF BUSINESS YORK UNIVERSITY...

This preview shows document pages 1 - 3. Sign up to view the full document.

View Full Document
Ask a homework question - tutors are online