Please refer to the SCREEN CAPTURE provided.

Please answer questions 1-5E using these statistic tools:

Descriptive Statistics, histograms, and charts https://www.calculatorsoup.com/calculators/statistics/descriptivestatistics.php

Pearson's r (Provides a wide range of statistics in addition to the r) http://www.wessa.net/rwasp_correlation.wasp

Chi-Squared Goodness of Fithttp://www.vassarstats.net/csfit.html

Chi-Squared Test of Independence http://vassarstats.netewcs.html

Independent T-test for Means of two samples (groups)http://www.socscistatistics.com/tests/studentttest/Default2.aspx

Select the one-tailed option.

For T-test for Pearson's r (See Pearson's r link above.)

NOTE: Sometimes, these tools will use scientific notation, e.g., a number followed by "e-0X" where X is an integer. This means to move the decimal X digits to the left. As an example, 6.97407626295473e-04 would be .000697... or .0007 .

INFO 5080 RESEARCH METHODS ACME Auto Repair Company Module 3, Part Two (Inferential Statistics) Assignment Data Sheet The management of ACME Automotive Repair Company, with over 400 franchises Subject # Preferred Attended Hours using Hours Percentage nationwide, has become concerned with the percentage of parts being ordered by mechanics Source for Training? Autoparts.com using of parts ordering parts Standard returned and then returned as the wrong part. Since there is a 20% restocking fee for returned parts, Manual the cost of these mistakes is considerable. 1 Autoparts.com N 7 6 12 Manual N 1 19 26 Management contracts with Information Solutions, Inc. (with whom you work) to consult on this 3 Autoparts.com | Y 14 5 8 situation. After on-site interviews and a job analysis, IS, inc. management proposes the following Autoparts.com Y 12 3 9 actions: 5 Manual 1 21 23 Autoparts.com 16 2 6 1. Randomly select five franchise locations with a total of 20 mechanics. 7 Autoparts.com Y 19 0 4 8 Manual 3 19 21 2. Provide access for these mechanics to Autoparts.com, an online interactive parts ordering 9 Autoparts.com | Y 17 3 10 service that allows the mechanic to view the part from many different angles as well as to 10 Manual N 4 36 20 visualize the part installed on the particular make and model selected. (Note, there is a charge 11 Autoparts.com N 6 9 12 for each password assigned, but searching is not time sensitive.) 12 Manual N 2 18 25 Provide access to training in the use of Autoparts.com for any of the 20 mechanics who choose |13 Autoparts.com 15 4 7 to participate. 14 Autoparts.com 13 2 8 15 Manual N 0 23 9 . Collect information on a number of variables (See data sheet.) |16 Autoparts.com Y 17 1 6 17 Autoparts.com 18 0 4 . Analyze the data to answer the following questions for management: 18 Manual 12 12 13 19 Autoparts.com 17 4 11 A. What is the relationship between attending training in the use of Autoparts.com and 20 Manual N 3 36 20 preferred source of ordering parts? B. What is the relationship between number of hours using Autoparts.com and number of hours using standard auto parts manual? C. Is there a difference in the percentage of returned parts between those who prefer using Autoparts.com and those who prefer using the standard auto parts manual? D. Is there a difference in the percentage of returned parts between those who attended training and those who did not? . ACME management reports that some of their mechanics spend a lot of time on Autoparts.com. They want to know if that is okay. What do you say (Question E)? NOTE: Complete a hypothesis testing sheet for each question 5A-E. You will complete this assignment by taking a quiz (Found in the Self Tests during the quiz window.) based on your answers to these questions. Have your answers with you when you take the quiz.) NOTE: 7.25e-6 tells you to move the decimal 6 places to the left which equals .00000725