MATH 221 (MATH221)
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MATH 221 Quiz Week 7 : DeVry University, New York - Worth 60 Points. latest 2022
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WEEK 7: QUIZ 
Points 60 Questions 30 
Time Limit 120Minutes 
Instructions 
Here is some information about your quiz or exam. 
This quiz covers Weeks 5 and 6, Chapters 6 and 7, and Course Objectives (COs) 6 
and 7. 
This quiz has 30 multiple choice questions worth 2 points each for a total value of 60 
points. 
You have 120 minutes to finish this quiz. 
When the time limit is reached you will be exited from the exam. 
Attempt History 
Attempt Time Score 
LATEST Attempt 1 84 minutes 30 out of 60 
...
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MATH 221 FINAL EXAM REVIEW(Version 2) QUESTIONS WITH ANSWERS: DEVRY UNIVERSITY
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Final Exam 
Review Questions – MATH221 
You should work each of the following on your own, then 
review the solutions guide. DO NOT look at the solutions guide 
first. 
1. Determine whether the following are nominal, ordinal, interval, and 
ratio. 
a. Daily temperatures in Ripon, WI 
b. Test scores in statistics class 
Solution: (a) would be interval as there is no zero while (b) would be ratio 
as there is a zero. 
2. The following numbers represent the weights in pounds of six 7-year 
old ch...
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MATH 221 - Week 4 Quiz.
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MATH 221 - Week 4 Quiz/MATH 221 - Week 4 Quiz.
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MATH 221 - Week 3 Quiz.
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MATH 221 - Week 3 Quiz.
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Exam (elaborations) MATH 221 Final Exam study guide solutions | Highly Rated Paper | Download To Score An A+ Final Exam Review Questions – MATH221 You should work each of the following on your own, then review the solutions guide. DO NOT look at the solut
- Exam (elaborations) • 6 pages • 2022
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Exam (elaborations) 
MATH 221 Final Exam study guide solutions | Highly Rated Paper | Download To Score An A+ 
Final Exam Review Questions – MATH221 You should work each of the following on your own, then review the solutions guide. DO NOT look at the solutions guide first. 1. Determine whether the foll owing are nominal, ordinal, interval, and ratio. a. Daily temperatures in Ripon, WI b. Test scores in...
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Math 221 Final Exam FinalReview w/answers VERY CORRECT
- Exam (elaborations) • 8 pages • 2022
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Jack weighs 160 pounds and his sister weighs 110 pounds. If the mean weight for 
men his age is 175 with a standard deviation of 14 pounds and the mean weight for 
women is 145 with a standard deviation of 10 pounds, determine whose weight is closer 
to "average." Write your answer in terms of zscores and areas under the normal curve. 
for Jack z = 1.07 
14 
15 
14 
160 175 
≈ − 
− 
= 
− 
= 
− 
σ 
x µ 
, when z = 1.07, area = .1423 
for his sister 2.50 
10 
25 
10 
110 14...
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MATH 221 Final Exam study guide solutions A GRADED SCORE
- Exam (elaborations) • 6 pages • 2022
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Final Exam 
Review Questions – MATH221 
You should work each of the following on your own, then 
review the solutions guide. DO NOT look at the solutions guide 
first. 
1. Determine whether the following are nominal, ordinal, interval, and 
ratio. 
a. Daily temperatures in Ripon, WI 
b. Test scores in statistics class 
Solution: (a) would be interval as there is no zero while (b) would be ratio 
as there is a zero. 
2. The following numbers represent the weights in pounds of six 7-year 
old ch...
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MATH 221Week 2 Lab (Graded)
- Other • 8 pages • 2021
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MATH 221 Statistics for Decision Making 
Week 2 iLab 
Name: Tanika Roberson 
Section Total pts Your pts 
Graphs (q 1-3) 12 12 
Calculation (q 4) 3 3 
Interpretation (q 5-11) 35 34 
Total 50 49 
Ti, terrific lab! Please see the attached file for my specific comments on q 5-11.. 
Statistical Concepts that you will learn after completing this iLab: 
 Using Excel for Statistics 
 Graphics 
 Shapes of Distributions 
 Descriptive Statistics 
 Empirical Rule 
Week 2 iLab Instructions-BEG...
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MATH 221 Week 7 Quiz (fixes) Corrections to versions of Questions 1, 2, 3, 6, 23, 24, 26, 27, 28, 30 | Download To Score An A.
- Exam (elaborations) • 6 pages • 2021
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MATH221 Week 7 Quiz Corrections to versions of Questions 1, 2, 3, 6, 23, 24, 26, 27, 28, 30 Question 1 version 3 (CO6) From a random sample of 68 businesses, it is found that the mean time that e mployees spend on personal issues each week is 45.8 5.8 hours with a standard deviation of 0.35 hours. What is the 95% confidence interval for the amount of time spent on personal issues? @See text page 301 a. (5.74, 5.90) b. (5.71, 5.89) c. (5.73, 5.87) *d. (5.72, 5.88) Question 2 version 1 (CO6) If a ...
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MATH 221 Week 7 Quiz (fixes) Corrections to versions of Questions 1, 2, 3, 6, 23, 24, 26, 27, 28, 30 | Download To Score An A.
- Exam (elaborations) • 6 pages • 2021
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- $10.99
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MATH221 Week 7 Quiz Corrections to versions of Questions 1, 2, 3, 6, 23, 24, 26, 27, 28, 30 Question 1 version 3 (CO6) From a random sample of 68 businesses, it is found that the mean time that e mployees spend on personal issues each week is 45.8 5.8 hours with a standard deviation of 0.35 hours. What is the 95% confidence interval for the amount of time spent on personal issues? @See text page 301 a. (5.74, 5.90) b. (5.71, 5.89) c. (5.73, 5.87) *d. (5.72, 5.88) Question 2 version 1 (CO6) If a ...
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