BUS-352 Module 2 Chapter 2 Problem Set 2
Business Statistics – Analysis Using Graphs and Descriptive Statistics
Grand Canyon University
Text book – Business Statistics: A First Course (6th Edition)
Complete problems 2.11, 2.15, 2.20, 2.24, 2.39, 2.43, 2.47, and 2.49 in the textbook.
Submit one Excel file. Put each problem result on a separate sheet in your file.
2.11 Each day at a large hospital, several hundred laboratory tests are performed. The rate at which these tests are done improperly (and therefore need to be redone) seems steady, at about 4%. In an effort to get to the root cause of these nonconformances, tests that need to be redone, the director of the lab decided to keep records over a period of one week………….
2. 15 The GMAT scores from a sample of 50 applicants to an MBA program indicate that none of the applicants scores below 450. A frequency distribution was formed by choosing class intervals 450 to 499, 500 to 549 and so on, with the last class having an interval from 700 to 749. Two applicants score in the interval 450 to 499, and 16 applicants scored in the interval 500 to 549
a. what percentage of applicants scored below 500
b. what percentage of applicants scored between 500 and 549 ………..
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