Homework Help is Here – Start Your Trial Now!
Math
Statistics
Market researchers are interested in what convinces people to stay for a long time in a shop. If T is the amount of time a random person spends in the shop, they estimate the probability density function of T to be f(x) = { sin (5x) : 0

Market researchers are interested in what convinces people to stay for a long time in a shop. If T is the amount of time a random person spends in the shop, they estimate the probability density function of T to be f(x) = { sin (5x) : 0

MATLAB: An Introduction with Applications
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
See similar textbooks
icon
Related questions
Question

4

Market researchers are interested in what convinces people to stay for a long time in a shop. If T is the amount of time a random person spends in the shop, they estimate the probability density function of T to be f(æ) = { sin () : : 0<x< 40 Using the symmetry of f(x), we can find the expected value of T without a long computation: ЕT) — The researchers plan on asking customers for an interview if their stay in the store is more than one standard deviation longer than the expected value of T, or more than one standard deviation shorter. The researchers, therefore, will ask a customer for an interview if the time they spend in the store is greater than or less than Remark: Clicking 'preview my answers' will give you a numerical value for your entry, without using an attempt. Before you submit your answer, think about whether it makes sense in the context of the experiment.
Transcribed Image Text:Market researchers are interested in what convinces people to stay for a long time in a shop. If T is the amount of time a random person spends in the shop, they estimate the probability density function of T to be f(æ) = { sin () : : 0<x< 40 Using the symmetry of f(x), we can find the expected value of T without a long computation: ЕT) — The researchers plan on asking customers for an interview if their stay in the store is more than one standard deviation longer than the expected value of T, or more than one standard deviation shorter. The researchers, therefore, will ask a customer for an interview if the time they spend in the store is greater than or less than Remark: Clicking 'preview my answers' will give you a numerical value for your entry, without using an attempt. Before you submit your answer, think about whether it makes sense in the context of the experiment.
Expert Solution
steps

Step by step

Solved in 2 steps with 2 images

SEE SOLUTIONCheck out a sample Q&A here
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
SEE MORE TEXTBOOKS