Five hundred draws are made at random with replacement from a box with 10,000 tickets. The average of the box is unknown. However, the average of the draws was 71.3, and their SD was about 2.3. Which one is true? (a) A 68% - confidence interval for the average of the box is 71.3 +- 0.1 (b) About 68% of the tickets in the box are in the range of 71.3 +- 0.1 (c) The 71.3 estimates the average of the box, but is likely to be off by 2.3 or so
Five hundred draws are made at random with replacement from a box with 10,000 tickets. The average of the box is unknown. However, the average of the draws was 71.3, and their SD was about 2.3. Which one is true? (a) A 68% - confidence interval for the average of the box is 71.3 +- 0.1 (b) About 68% of the tickets in the box are in the range of 71.3 +- 0.1 (c) The 71.3 estimates the average of the box, but is likely to be off by 2.3 or so
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.4: Distributions Of Data
Problem 19PFA
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Five hundred draws are made at random with replacement from a box with 10,000 tickets. The average of the box is unknown. However, the average of the draws was 71.3, and their SD was about 2.3. Which one is true?
(a) A 68% - confidence interval for the average of the box is 71.3 +- 0.1
(b) About 68% of the tickets in the box are in the
(c) The 71.3 estimates the average of the box, but is likely to be off by 2.3 or so
(d) There is around 68% chance that the average of the box is 71.3 +- 0.1
(e) It is impossible to build a 100% - confidence interval for the average of the box around 71.3
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