L5 Home Work Quiz

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School

Brigham Young University, Idaho *

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Course

221 C

Subject

Statistics

Date

Jun 4, 2024

Type

pdf

Pages

4

Uploaded by ProfessorBat4234

5/11/24, 5:09 PM LO5 Quiz: Homework: Business Statistics LO5 Quiz: Homework Due May 11 at 11:59pm Points 10 Questions 10 Available May 2 at 12am - May 11 at 11:59pm Time Limit None Allowed Attempts 2 Instructions Preparation e Download the Lesson 5 Homework Assignment = https://byuistats.github.io/BYUl M221 Book/hp/L05/05 HW Assignment A.html) and answer the questions. o Attempt each problem on your own. » You are encouraged to collaborate with other students after your first attempt. ¢ Download the Lesson 5 Homework Answer Key = —_—f_y) e e ey —_— ] - answers. Take the Quiz e You may use your notes, but you should complete the quiz without help from others. e This quiz is a tool to help you and your instructor gauge your progress. Attempt History Attempt Time Score KEPT Attempt 2 6 minutes 10 out of 10 LATEST Attempt 2 6 minutes 10 out of 10 Attempt 1 39 minutes 8 out of 10 (@ Correct answers will be available on May 12 at 12am. Score for this attempt: 10 out of 10 Submitted May 11 at 9:08am This attempt took 6 minutes. https://byui.instructure.com/courses/292708/quizzes/4563759 1/4
5/11/24, 5:09 PM LO5 Quiz: Homework: Business Statistics On this homework quiz, you may use your notes, but you should complete it without help from others. This homework quiz is a tool to help you and your instructor gauge your progress. When calculating anything, please remember to round to three decimal places, unless otherwise specified. DO NOT ROUND until your calculation is complete. Question 1 1/1 pts An observation was drawn from a normally distributed population with mean 2.397 and standard deviation 0.612. If the observed value is 3.144, find the z-score. Give your answer accurate to 3 decimal places (Example: 4.567). 1.221 Question 2 1/1 pts The height of 5th grade boys is normally distributed with mean p = 57 inches and standard deviation o = 2 inches. What is the probability that the height of a randomly selected 5th grade boy will be between 53 inches and 61 inches? Approximately 0.68 Approximately 0.95 Approximately 0.997 None of the above. Question 3 1/1 pts Human blood pressure levels are normally distributed. If you measured an individual's blood pressure and found the blood pressure level to have a z-score of 2.1, what would you conclude about that person? The individual's blood pressure is unusually high, compared to others. The individual's blood pressure is 2.1 times higher than the average person. The individual's blood pressure level is about average, compared to others. Since the z-score is positive we know that the individual has normal blood pressure, compared to others. https://byui.instructure.com/courses/292708/quizzes/4563759 2/4
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