An online retailer has a new website and would like to compare the proportion of customers who made a purchase from the old website versus the proportion who made a purchase from the new website to see if the two proportions are different. A simple random sample of customers visiting the old and new websites is taken. The results are shown below. Old site Successes Observations Proportion Confidence level Z-score p-value 156 Successes 400 Observations 0.390 Proportion 90% 1.819 0.069 New site Old site samples: nold = Ex: 9 49 100 0.490 New site samples: nnew Sample proportion for old site samples: Pold Sample proportion for new site samples: new 1 -3 -2 2= Ex: 1.234 Ex: 1.234 -1 0 1 2= 2 p= Ex: 1.234 2 3
An online retailer has a new website and would like to compare the proportion of customers who made a purchase from the old website versus the proportion who made a purchase from the new website to see if the two proportions are different. A simple random sample of customers visiting the old and new websites is taken. The results are shown below. Old site Successes Observations Proportion Confidence level Z-score p-value 156 Successes 400 Observations 0.390 Proportion 90% 1.819 0.069 New site Old site samples: nold = Ex: 9 49 100 0.490 New site samples: nnew Sample proportion for old site samples: Pold Sample proportion for new site samples: new 1 -3 -2 2= Ex: 1.234 Ex: 1.234 -1 0 1 2= 2 p= Ex: 1.234 2 3
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
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