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Here are the best resources to pass MATH 221 (MATH221). Find MATH 221 (MATH221) study guides, notes, assignments, and much more.
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MATH 221 Quiz Week 7 : DeVry University, New York - Worth 60 Points. latest 2022
Exam (elaborations) • 19
pages
• 2022
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

...
MATH 221 Quiz Week 7 : DeVry University, New York - Worth 60 Points. latest 2022
Last document update:
ago
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

...
MATH 221 FINAL EXAM REVIEW(Version 2) QUESTIONS WITH ANSWERS: DEVRY UNIVERSITY
Essay • 6
pages
• 2022
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...
MATH 221 FINAL EXAM REVIEW(Version 2) QUESTIONS WITH ANSWERS: DEVRY UNIVERSITY
Last document update:
ago
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...
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
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...
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
Last document update:
ago
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...
Math 221 Final Exam FinalReview w/answers VERY CORRECT
Exam (elaborations) • 8
pages
• 2022
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...
Math 221 Final Exam FinalReview w/answers VERY CORRECT
Last document update:
ago
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...
MATH 221 Final Exam study guide solutions A GRADED SCORE
Exam (elaborations) • 6
pages
• 2022
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...
MATH 221 Final Exam study guide solutions A GRADED SCORE
Last document update:
ago
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...
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...
MATH 221Week 2 Lab (Graded)
Last document update:
ago
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...
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
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 ...
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.
Last document update:
ago
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 ...
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
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 ...
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.
Last document update:
ago
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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