n online retailer would like to know whether the proportion of customers who visit the site and make a purchase is different than 50%. A simple random sample of customers is taken. The results of the sample are shown below. (see attachments) What is the level of significance?___________________
n online retailer would like to know whether the proportion of customers who visit the site and make a purchase is different than 50%. A simple random sample of customers is taken. The results of the sample are shown below. (see attachments) What is the level of significance?___________________
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
Related questions
Question
An online retailer would like to know whether the proportion of customers who visit the site and make a purchase is different than 50%. A simple random sample of customers is taken. The results of the sample are shown below. (see attachments)
What is the level of significance?___________________
Transcribed Image Text:What condition for using a z-distribution is met?
The sample taken was a simple random sample.
Pick
nce?
A simple random sample of more than 30 customers was taken.
The sample taken was a simple random sample.
10? The true population proportion is known.
Transcribed Image Text:Customer sample
What is the population parameter?
59
made a purchase
The number of customers in the sample who made a purchase on the site
Pick
Observations
100
Confidence Level
95%
1.95 Wha The number of customers in the sample who made a purchase on the site
Critical value
test statistic (2)
1.8
The number of customers sampled
The proportion of all customers in the sample who made a purchase on the site
p-value
0.072
What is the level of significance? The proportion of all customers who made a purchase on the site
Expert Solution
Step 1
Solution:
Given information:
p= 0.50 Population proportion.
Confidence level = C=95%
Claim: The proportion of customers who visit the site and make a purchase is different than 50%.
The null and alternative hypothesis is
Test statistic z =1.8 Given
P value = 0.072 Given
Trending now
This is a popular solution!
Step by step
Solved in 2 steps
Recommended textbooks for you
MATLAB: An Introduction with Applications
Statistics
ISBN:
9781119256830
Author:
Amos Gilat
Publisher:
John Wiley & Sons Inc
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
ISBN:
9781305504912
Author:
Frederick J Gravetter, Larry B. Wallnau
Publisher:
Cengage Learning
MATLAB: An Introduction with Applications
Statistics
ISBN:
9781119256830
Author:
Amos Gilat
Publisher:
John Wiley & Sons Inc
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
ISBN:
9781305504912
Author:
Frederick J Gravetter, Larry B. Wallnau
Publisher:
Cengage Learning
Elementary Statistics: Picturing the World (7th E…
Statistics
ISBN:
9780134683416
Author:
Ron Larson, Betsy Farber
Publisher:
PEARSON
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
Statistics
ISBN:
9781319013387
Author:
David S. Moore, George P. McCabe, Bruce A. Craig
Publisher:
W. H. Freeman