Suppose the time it takes a data collection operator to fill out an electronic form for a database is uniformly distributed between 1.2 and 2.3 minutes. (a) Determine the mean of X. (Round your answer to 2 decimal places.) minutes (b) Determine the variance of X. (Round your answer to 4 decimal places.) minutes² (c) What is the probability it will take less than two minutes to fill out the form? (Round your answer to 3 decimal places.) (d) What is the probability it will take more than 90 seconds to fill out the form? (Round your answer to 3 decimal places.)

MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
icon
Related questions
Question
4 help on 4 part
### Data Collection Timing Analysis

Suppose the time it takes a data collection operator to fill out an electronic form for a database is uniformly distributed between 1.2 and 2.3 minutes.

#### Questions:

(a) **Determine the mean of X.**  
(Round your answer to 2 decimal places.)  
Input box for answer: ____ minutes

(b) **Determine the variance of X.**  
(Round your answer to 4 decimal places.)  
Input box for answer: ____ minutes²

(c) **What is the probability it will take less than two minutes to fill out the form?**  
(Round your answer to 3 decimal places.)  
Input box for answer: ____

(d) **What is the probability it will take more than 90 seconds to fill out the form?**  
(Round your answer to 3 decimal places.)  
Input box for answer: ____

---

For further information, refer to Statistical Tables and Charts.
Transcribed Image Text:### Data Collection Timing Analysis Suppose the time it takes a data collection operator to fill out an electronic form for a database is uniformly distributed between 1.2 and 2.3 minutes. #### Questions: (a) **Determine the mean of X.** (Round your answer to 2 decimal places.) Input box for answer: ____ minutes (b) **Determine the variance of X.** (Round your answer to 4 decimal places.) Input box for answer: ____ minutes² (c) **What is the probability it will take less than two minutes to fill out the form?** (Round your answer to 3 decimal places.) Input box for answer: ____ (d) **What is the probability it will take more than 90 seconds to fill out the form?** (Round your answer to 3 decimal places.) Input box for answer: ____ --- For further information, refer to Statistical Tables and Charts.
Expert Solution
Step 1

given data

 

X~U(1.2,2.3)

uniform distribution

f(x) = 1b-a = 12.3-1.2 = 11.1

steps

Step by step

Solved in 3 steps with 1 images

Blurred answer
Recommended textbooks for you
MATLAB: An Introduction with Applications
MATLAB: An Introduction with Applications
Statistics
ISBN:
9781119256830
Author:
Amos Gilat
Publisher:
John Wiley & Sons Inc
Probability and Statistics for Engineering and th…
Probability and Statistics for Engineering and th…
Statistics
ISBN:
9781305251809
Author:
Jay L. Devore
Publisher:
Cengage Learning
Statistics for The Behavioral Sciences (MindTap C…
Statistics for The Behavioral Sciences (MindTap C…
Statistics
ISBN:
9781305504912
Author:
Frederick J Gravetter, Larry B. Wallnau
Publisher:
Cengage Learning
Elementary Statistics: Picturing the World (7th E…
Elementary Statistics: Picturing the World (7th E…
Statistics
ISBN:
9780134683416
Author:
Ron Larson, Betsy Farber
Publisher:
PEARSON
The Basic Practice of Statistics
The Basic Practice of Statistics
Statistics
ISBN:
9781319042578
Author:
David S. Moore, William I. Notz, Michael A. Fligner
Publisher:
W. H. Freeman
Introduction to the Practice of Statistics
Introduction to the Practice of Statistics
Statistics
ISBN:
9781319013387
Author:
David S. Moore, George P. McCabe, Bruce A. Craig
Publisher:
W. H. Freeman