An auditor for a hardware store chain wished to compare the efficiency of two different auditing techniques. To do this he selected a sample of nine store accounts and applied auditing techniques A and B to each of the nine accounts selected. The number of errors found in each of techniques A and B is listed in the table below: Errors in A Errors in B 45 31 48 37 46 39 48 37 52 54 50 45 49 49 40 41 45 50 Select a 90% confidence interval for the true mean difference in the two techniques. a) [3.050, 5.838] b) [-4.183, 4.183] c) [2.584, 6.304] d) [2.195, 6.693] e) [0.261, 8.627] f) None of the above
An auditor for a hardware store chain wished to compare the efficiency of two different auditing techniques. To do this he selected a sample of nine store accounts and applied auditing techniques A and B to each of the nine accounts selected. The number of errors found in each of techniques A and B is listed in the table below: Errors in A Errors in B 45 31 48 37 46 39 48 37 52 54 50 45 49 49 40 41 45 50 Select a 90% confidence interval for the true mean difference in the two techniques. a) [3.050, 5.838] b) [-4.183, 4.183] c) [2.584, 6.304] d) [2.195, 6.693] e) [0.261, 8.627] f) None of the above
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.5: Comparing Sets Of Data
Problem 14PPS
Related questions
Question
An auditor for a hardware store chain wished to compare the efficiency of two different auditing techniques. To do this he selected a sample of nine store accounts and applied auditing techniques A and B to each of the nine accounts selected. The number of errors found in each of techniques A and B is listed in the table below:
Select a 90% confidence interval for the true mean difference in the two techniques.
| Errors in A | Errors in B |
| 45 | 31 |
| 48 | 37 |
| 46 | 39 |
| 48 | 37 |
| 52 | 54 |
| 50 | 45 |
| 49 | 49 |
| 40 | 41 |
| 45 | 50 |
Select a 90% confidence interval for the true mean difference in the two techniques.
a) [3.050, 5.838]
b) [-4.183, 4.183]
c) [2.584, 6.304]
d) [2.195, 6.693]
e) [0.261, 8.627]
f) None of the above
Expert Solution
This question has been solved!
Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.
This is a popular solution!
Trending now
This is a popular solution!
Step by step
Solved in 2 steps with 3 images
Recommended textbooks for you
Glencoe Algebra 1, Student Edition, 9780079039897…
Algebra
ISBN:
9780079039897
Author:
Carter
Publisher:
McGraw Hill
Glencoe Algebra 1, Student Edition, 9780079039897…
Algebra
ISBN:
9780079039897
Author:
Carter
Publisher:
McGraw Hill