Math 221 week 7 quiz - Study guides, Revision notes & Summaries

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...

MATH 221 Quiz Week 7 : DeVry University, New York - Worth 60 Points.

Math 221 Quiz Week 1 to Week 7 Combined Quizzes with complete solution

1 GRE GRE 2 Section 1: Sec One (1 to 20) Details: Analogies Part 1 Practice Questions: QUESTION: 1 DRIP : GUSH A. cry : laugh B. curl : roll C. stream : tributary D. dent : destroy E. bend : angle Answer: D QUESTION: 2 WALK : LEGS A. blink : eyes B. chew : mouth C. dress : hem D. cover : book E. grind : nose Answer: B QUESTION: 3 ENFRANCHISE : SLAVERY A. equation : mathematics B. liberate : confine C. bondage : subjugation D. appeasement : unreasonable E. anato...

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...

Week 7 Quiz Question 1 2 / 2 pts (CO6) From a random sample of 68 businesses, it is found that the mean time that employees spend on personal issues each week is 4.9 hours with a standard devi ation of 0.35 hours. What is the 95% confidence interval for the amount of time spent on personal issues? @See text page 301 (4.55, 5.25) (4.71, 5.09) (4.83, 4.97) Correct! (4.82, 4.98) Move To... Question 2 2 / 2 pts (CO6) If a confidence interval is given from 8.56 to 10.19 and the mean is known to be 9....

(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 2 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 in the bottom 20%. He is in the botto...

(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 2 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...

MATH 302 Final Exam 2022 - American University | RATED A+MATH 302 Final Exam 2022 - American University QUIZ 1 Question 1 of 20 1.0/ 1.0 Points Which of the following statements are false regarding a boxplot? A. The height of the box has no significance. B. Boxplots can be used to either describe a single variable in a data set or to compare two (or more)variables C. The length of the box equals the range of the data. D. The right and left of the box are the third and first qu...

MATH 302 Final Exam Questions & Answers 2022 - American University | RATED AMATH 302 Final Exam 2022 - American University QUIZ 1 Question 1 of 20 1.0/ 1.0 Points Which of the following statements are false regarding a boxplot? A. The height of the box has no significance. B. Boxplots can be used to either describe a single variable in a data set or to compare two (or more)variables C. The length of the box equals the range of the data. D. The right and left of the box are th...