Reference: Question 3 in Case Assignment #2 instructions. The Technical Director for ICS has embarked upon a quality imp
-
- Site Admin
- Posts: 899603
- Joined: Mon Aug 02, 2021 8:13 am
Reference: Question 3 in Case Assignment #2 instructions. The Technical Director for ICS has embarked upon a quality imp
Question 3 in Case Assignment #2 instructions. The Technical Director for ICS has embarked upon a quality improvement effort. Their first project relates to maintaining the target upload speed for its Internet service subscribers. Upload speeds are measured on a scale in which the target range is between 15.0 Mbps and 15.5 Mbps. Data collected over the past year indicate that the upload speed is approximately normally distributed, with a mean of 15.05 Mbps, and a standard deviation of 1.43 Mbps. Each day, one upload speed is measured. Assuming that the distribution of upload speed has not changed from what it was in the past year, what is the probability of the following: (a) The upload speed is less than 15.0 Mbps? (b) The upload speed is greater than 15.5 Mbps? (c) The upload speed is between 15.0 Mbps and 15.5 Mbps? (d) The upload speed is either less than 15.0 Mbps or greater than 15.5 Mbps? Please provide all solutions for parts (a)-(d) as values between 0 and 1, rounded to 4 decimal places. In addition, the Technical Director would like to know: (e) The fastest 10% of uploads are above what speed? Please provide the solutions for part (e) as a value in Mbps, rounded to 4 decimal places. There is no need to show your work. Feel free to utilize the Excel Guide Workbook: Normal.xlsx.
Reference: