Statistics gathered on delay at a machine on 196 different (and assumed independent) days yielded a sample mean of 3.0 min and a sample standard deviation of 1.4 min. (a) Construct a 95% confidence interval for the average delay. (b) Approximately how many more days of observations would be needed to make the size of the confidence interval around +0.1 min? A new machine is being considered to replace the present machine. (c) 100 simulation runs were conducted on the new machine, giving a sample mean of 3.3 min and a sample standard deviation of 1.2 min. Construct a 95% confidence interval for the difference between the two machines (assume the 100 simulation runs are independent of the original set of simulation runs) . Can you make any conclusions?
Statistics gathered on delay at a machine on 196 different (and assumed independent) days yielded a sample mean of 3.0 min and a sample standard deviation of 1.4 min. (a) Construct a 95% confidence interval for the average delay. (b) Approximately how many more days of observations would be needed to make the size of the confidence interval around +0.1 min? A new machine is being considered to replace the present machine. (c) 100 simulation runs were conducted on the new machine, giving a sample mean of 3.3 min and a sample standard deviation of 1.2 min. Construct a 95% confidence interval for the difference between the two machines (assume the 100 simulation runs are independent of the original set of simulation runs) . Can you make any conclusions?
A First Course in Probability (10th Edition)
10th Edition
ISBN:9780134753119
Author:Sheldon Ross
Publisher:Sheldon Ross
Chapter1: Combinatorial Analysis
Section: Chapter Questions
Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...
Related questions
Question
kindly answer only part C
Expert Solution
This question has been solved!
Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.
Step by step
Solved in 2 steps
Recommended textbooks for you
A First Course in Probability (10th Edition)
Probability
ISBN:
9780134753119
Author:
Sheldon Ross
Publisher:
PEARSON
A First Course in Probability (10th Edition)
Probability
ISBN:
9780134753119
Author:
Sheldon Ross
Publisher:
PEARSON