Homework Assignment #2

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School

University of Texas, Dallas *

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Course

4346

Subject

Statistics

Date

Feb 20, 2024

Type

docx

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Uploaded by GeneralRock6790

Homework Assignment #2 Instructions: Solve the following questions by hand. Do not use any statistical program. Show your work and upload the assignment on e-learning. You should see a submission link under “Assignments” folder. Submissions can be made either as a single word doc or a pdf. Three attempts are allowed until the due date. The due date for this assignment is Monday 1/29/24, 6pm . Late assignments will not be accepted. If you have any questions, please contact Maitreyee: maitreyee.kulkarni@utdallas.edu . Question 1. For the following scores: [4 points] a. Construct a frequency distribution table. b. Sketch a histogram of the frequency distribution. 1, 2, 3, 1, 1, 4, 2 1, 5, 6, 2, 2, 1, 3 Question 2. Find n , ∑X, ∑X 2 for the set of scores in the following frequency distribution table: [4 points] X f 5 3 4 4 3 2 2 1 1 3 Question 3: In a grouped frequency distribution table, one interval is listed as 35-39. If the scores represent a continuous variable, what are the real limits for this interval? [2 points] Question 4: Calculate the percentile rank for a score of 4 in the frequency distribution table below: [2 points] X f 6 4 5 5 4 1 3 3 2 6 1 1 Question 5 : What is the shape of the distribution for the following set of data? Answer in one word. [1 point]

Scores: 1, 1, 1, 1, 1, 2, 2, 2, 3, 3, 4, 5 Question 6: Compute the mean, median, and mode for the set of scores presented in the following frequency distribution table: [3 points] X f 7 1 6 4 5 3 4 1 3 1 2 2 1 3 Question 7 : An introduction to psychology course professor has students report their major on the first day of classes. Then, the professor decides to determine the major that is most representative of the students in their class. Which measure of central tendency should they utilize? Answer in one word. [ 1 point] Question 8 : A sample of scores has a mean of M = 26, a median of 28, and a mode of 29. What is the most likely shape for the sample distribution? Answer in one word. [1 point] Question 9 : What is the value of the median for the following set of scores? Scores: 1, 4, 6, 7, 9, 15, 15, 16, 25, 30 [ 2 points]

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