At a major credit card bank, the percentages of people who historIcally apply for the Silver, Gold and Platinum cards are bo0%, 30% and 1U% fespectivey in a Gold and 44 for Platinum Is there evidence to suggest that the percentages for this promotion may be dfferent from the historical proportions? a) What is the expected number of customers applying for each type of card in this sample if tho historical proportions are stil true? b) Compute the statistic c) How many degrees of freedom does the x statistic have? a) The expected number of silver card customers is (Type an integer or a decimal)
At a major credit card bank, the percentages of people who historIcally apply for the Silver, Gold and Platinum cards are bo0%, 30% and 1U% fespectivey in a Gold and 44 for Platinum Is there evidence to suggest that the percentages for this promotion may be dfferent from the historical proportions? a) What is the expected number of customers applying for each type of card in this sample if tho historical proportions are stil true? b) Compute the statistic c) How many degrees of freedom does the x statistic have? a) The expected number of silver card customers is (Type an integer or a decimal)
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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
Transcribed Image Text:At a major credit card bank, the percentages of people who historically apply for the Silver, Gold and Platinum cards are 60%, 30% and 10% respectively. In a recent sample of customers responding to a promotion, of 200 customers, 104 applied for Silver, 52 for
Gold and 44 for Platinum. Is there evidence to suggest that the percentages for this promotion may be different from the historical proportions?
a) What is the expected number of customers applying for each type of card in this sample if the historical proportions are still true?
b) Compute the x statistic.
c) How many degrees of freedom does the x statistic have?
a) The expected number of silver card customers is
(Type an integer or a decimal.)
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