L03 Quiz_ Homework_ Social Science Statistics

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School

Brigham Young University, Idaho *

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Course

221 C

Subject

Mathematics

Date

Apr 3, 2024

Type

pdf

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Uploaded by DeaconWolverine3338

L03 Quiz: Homework Due Jan 20 at 10:59pm Points 13 Questions 13 Time Limit None Allowed Attempts 2 Instructions Attempt History Attempt Time Score KEPT Attempt 2 9 minutes 13 out of 13 LATEST Attempt 2 9 minutes 13 out of 13 Attempt 1 34 minutes 12 out of 13 Score for this attempt: 13 out of 13 Submitted Jan 18 at 8:02pm This attempt took 9 minutes.   Preparation Download the L03 Homework Assignment (https://byuistats.github.io/BYUI_M221_Book/hp/L03/03_HW_Assignment_A.html) and answer the questions. Attempt each problem on your own. You are encouraged to collaborate with other students after your first attempt. Download the L03 Homework Answer Key (https://byuistats.github.io/BYUI_M221_Book/hp/L03/03_HW_Answer_Key_A.html) and check your answers. Take the Quiz You may use your notes, but you should complete the quiz without help from others. This quiz is a tool to help you and your instructor gauge your progress. On this quiz, you may use your notes, but you should complete the quiz without help from others. This quiz is a tool to help you and your instructor gauge your progress. Use the following information to answer the next 2 parts.

 Question 1 1 / 1 pts Correct! The mean will increase. The mean will decrease. The mean will stay the same. It is not possible to determine this without the full data set.  Question 2 1 / 1 pts The median will increase. The median will decrease. The median will stay the same. Correct! It is not possible to determine this without the full data set.  Question 3 1 / 1 pts For a Math 221 project, one group of students studied the ages of students on the BYU-Idaho campus. They collected data from a random sample of n = 100 students. The sample mean was 21.2. An excerpt of their data is given below. The group notices an error in their data. The age of one of the males (ID=3) was entered incorrectly. He is actually 21 years old. Part 1: When the error is corrected, what will happen to the sample mean? Part 2: When the error is corrected, what will happen to the sample median? Which one of the following histograms was made from data that are definitely skewed right?

Correct!  The graph below illustrates typical student hourly wages for BYU-Idaho.

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