Math 221 quiz - Study guides, Class notes & Summaries
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MATH 221 week 8 2023 REFLECTION QUESTIONS WITH SOLUTIONS NEW Quiz
- Exam (elaborations) • 6 pages • 2023
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MATH 221 week 8 2023 REFLECTION QUESTIONS WITH SOLUTIONS NEW Quiz
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DeVry University, Keller Graduate School of Management_MATH 221Week 7 quiz (Latest 2022/2023)
- Exam (elaborations) • 18 pages • 2023
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Question 1 
2 / 2 pts 
(CO6) From a random sample of 55 businesses, it is found that the mean time that 
employees spend on personal issues each week is 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? 
(5.74, 5.90) 
(5.73, 5.87) 
(5.72, 5.88) 
Correct! 
(5.71, 5.89) 
Question 2 
0 / 2 pts 
(CO6) If a confidence interval is given from 8.54 to 10.21 and the mean is known to be 
9.375, what is the maximum erro...
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DeVry University, Naperville MATH 221 Math 221 Week 7 Quiz
- Exam (elaborations) • 18 pages • 2023
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Question 1 
2 / 2 pts 
(CO6) From a random sample of 55 businesses, it is found that the mean time that 
employees spend on personal issues each week is 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? 
(5.74, 5.90) 
(5.73, 5.87) 
(5.72, 5.88) 
Correct! 
(5.71, 5.89) 
Question 2 
0 / 2 pts 
(CO6) If a confidence interval is given from 8.54 to 10.21 and the mean is known to be 
9.375, what is the maximum erro...
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MATH 221 Statistics For Decision Making [Entire Course Week 1 – 8] BUNDLED | 100% CORRECT SOLUTIONS | LATEST UPDATE
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MATH 221 Week 1 Homework (Collection)
MATH-221 Week 1 Quiz (100% Correct Collection)
MATH 221 Week 1 Discussion: Posts
MATH-221 Week 1 Lesson

MATH 221 Week 2 Homework (Collection)
MATH-221 Week 2 Quiz (100% Correct Collection)
MATH 221 Week 2 LAB Assignment (Collection)
MATH-221 Week 2 Discussion: Posts
MATH 221 Week 2 Lesson

MATH-221 Week 3 Home
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DeVry University, Naperville MATH 221 Week 3 Quiz (answered correctly)
- Exam (elaborations) • 18 pages • 2023
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Question 1 
0 / 2 pts 
(CO 1) A survey of 385 people who like wild sweaters found that 74% had a wild holiday 
sweater. What is the population and what is the sample? 
Population: people who like wild sweaters: Sample: the 385 people who had a wild 
holiday sweater 
Population: people who like sweaters; Sample: the 74% that had a wild holiday sweater 
Population: people who like wild sweaters; Sample: the 385 people who like wild 
sweaters 
Population: people who like wild sweaters; Sample: the ...
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MATH 302 QUIZ 1 – QUESTION AND ANSWERS SET 3
- Exam (elaborations) • 8 pages • 2023
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MATH 302 QUIZ 1 – QUESTION AND ANSWERS SET 3 
 
A Math 302 quiz 1 
Question 1 of 20 1.0/ 1.0 Points 
 
What is the term for a characteristic or attribute that can assume different values? A.datum 
B.exponent Correct C.variable D.sample 
 
 
Answer Key: C 
 
 
Question 2 of 20 1.0/ 1.0 Points 
 
A pareto chart does NOT have which of the following properties? A.It is used to represent categorical data 
B.The frequencies are arranged from highest to lowest Correct C.The frequencies are arranged f...
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L24 Quiz_ Group Meeting_ Biostatistics.
- Exam (elaborations) • 21 pages • 2022
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Question 1 1 / 1 pts 
I met with my group and completed this Group Quiz with them. 
True 
False 
Ques 1 / 1 pts tion 2 
Which of the following variables is/are quantitative? (Mark all that apply) 
The telephone number of a randomly selected business in town. The 3 most common brands of car found in the US. 
The number of people in a randomly selected classroom on campus. 
Ques 1 / 1 pts tion 3 
Students in an Introductory Statistics class at BYU-Idaho were studying prices of 
cold cereal at groc...
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MATH 221 Quiz Week 7 : DeVry University, New York - Worth 60 Points. latest 2022
- Exam (elaborations) • 19 pages • 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 221B - L24 Quiz Group Meeting Biostatistics. Questions and Answers.
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MATH 221B - L24 Quiz Group Meeting Biostatistics. Questions and Answers. 
 
Question 1 
1 / 1 pts 
I met with my group and completed this Group Quiz with them. 
Correct! 
True 
Question 2 
1 / 1 pts 
Which of the following variables is/are quantitative? (Mark all that apply.) 
The telephone number of a randomly selected business in town. 
The 3 most common brands of car found in the US. 
Correct! 
The number of people in a randomly selected classroom on campus. 
Question 3 
1 / 1 pts 
Students i...
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MATH-221 - Week 6- Quiz (2)
- Exam (elaborations) • 1 pages • 2024
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MATH-221 - Week 6- Quiz - 2nd attempt 
Book: Chan, C. et al. (2022). Statistics for Decision Making (3rd ed.). zyBooks, A Wiley Brand. 
Course: (MATH 221) Statistics for Decision Making - course code 61204
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