Math 221 week 6 quiz - Study guides, Class notes & Summaries
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Exam (elaborations) MATH221 Graded week 7 quiz (MATH221)MATH 221 Week 7 Quiz
- Exam (elaborations) • 4 pages • 2022
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(TCO 6) In the standard normal distribution, the standard deviation is always 
Student Answer:	 0 
 1 
 2 
 none of these 
 
 
 2.	Question :	(TCO 6) The area under a normal curve with mu = 8 and sigma = 3 is 
Student Answer:	 0 
 1 
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 none of these 
 
 
 3.	Question :	(TCO 6) If Larry gets a 70 on a physics test where the mean is 65 and the standard deviation is 5.8, where does he stand in relation to his classmates? 
Student Answer:	 He is in the top 10%. 
 He is in the top 20%. 
 He is i...
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MATH 221 Week 7 Quiz (GRADED A) Questions and Answer Elaborations | DeVry University
- Exam (elaborations) • 17 pages • 2021
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MATH 221 Week 7 Quiz (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? @See text page 301 (5.71, 5.89) (5.72, 5.88) (5.73, 5.87) (5.74, 5.90) (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 margin of error? @See text page 301 1...
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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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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 Quiz Week 7 : DeVry University, New York - Worth 60 Points.
- Exam (elaborations) • 19 pages • 2019
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MATH221 Quiz Week 7
A Formulas Included
Questions 1
(CO 4) From a random sample of 55 businesses, it is found that the mean time that employees spend on persona 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?
(5.72, 5.88)
(5.73, 5.87)
(5.74, 5.90)
(5.71, 5.89)
Question 2
(CO 4) If a confidence interval is given from 8.56 to 10.19 and the mean is known to be 9.375, what is the margin of e...
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