sp01ex1c - COURSE: MSCI 3710 EXAM 1 Version C SEMESTER:...

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

View Full Document Right Arrow Icon
COURSE: MSCI 3710 Print Name: EXAM 1 Signature: Version C S.S.#: SEMESTER: Spring 2001 Section Number: Note: Whenever question(s) are connected you may be asked to assume a result (given a value) from the previous question but this result may or may not be correct. This is to prevent you from losing points on a second question because you made a mistake on a previous question. Use the information given in the paragraph below to answer the next three questions . Instructions: n Please print your name, social security number, and section number on this exam. Also, put your signature on this exam. P On your scantron PRINT your name, your version, and your section number. To better protect your privacy also print your name on the backside of your scantron. P You have 75 minutes to complete this exam. The exam is open book, open notes, and open mind. You may use any type of calculator but please show all your work on the exam and mark all answers on the scantron. P Many of the questions follow the format of those in Adventures in Business Statistics. The remaining questions are either based on the Excel assignment or use an Adventures-like approach with problems nearly identical to those assigned in the textbook. P When you have completed the exam, please insert your scantron into the exam booklet and turn them in to your instructor. P No cheating. P Good luck and we wish you well on the exam. 1
Background image of page 1

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

View Full DocumentRight Arrow Icon
An engineer has designed a valve that will regulate water pressure on an automobile engine. The engineer designed the valve such that it would produce a mean pressure of 7.3 lbs./sq. inch. The valve was tested on 150 engines and the average pressure was 7.2 lbs./sq. inch with a variance of 0.36 lbs./sq. inch. Is there evidence at the 0.10 level that the valve does not perform to the specifications? 1. What are the null hypothesis and alternative hypothesis for this test? A. Ho: μ = 7.2 Ha: μ P< 7.2 B. Ho: μ 7.3 Ha: μ < 7.3 C. Ho: μ = 7.2 Ha: μ 7.2 D. Ho: μ > 7.3 Ha: μ 7.3 E. Ho: μ = 7.3 Ha: μ 7.3 * 2. What is the calculated value of the test statistic? A. 2.04 B. –3.40 C. 3.40 D. –2.04 * E. 2.42 3. Assuming the calculated value of the test statistic is 2.00, what are the decision and conclusion of the test? A. Fail to reject the null hypothesis, conclude there is insufficient evidence of Ha. B. Fail to reject the null hypothesis, conclude there is evidence of Ha. C. Reject the null hypothesis, conclude there is evidence of Ha. * D. Reject the null hypothesis, conclude there is evidence of Ho. E. Reject the null hypothesis, conclude there is insufficient evidence of Ha. Use the information given in the paragraph below to answer the next two questions . The mayor of a town believes that above 34% of the residents favor annexation of an
Background image of page 2
Image of page 3
This is the end of the preview. Sign up to access the rest of the document.

This note was uploaded on 03/09/2011 for the course DSC 3710 taught by Professor Staff during the Spring '09 term at North Texas.

Page1 / 12

sp01ex1c - COURSE: MSCI 3710 EXAM 1 Version C SEMESTER:...

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

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