A market researcher working for the bank in Exercise wants to know if the distribution of applications
Question:
A market researcher working for the bank in Exercise wants to know if the distribution of applications by card is the same for the past three mailings. She takes a random sample of 200 from each mailing and counts the number applying for Silver, Gold, and Platinum. The data follow:
a) What is the null hypothesis?
b) What type of test is this?
c) What are the expected numbers for each cell if the null hypothesis is true?
d) Find the x2 statistic.
e) How many degrees of freedom does it have?
f) Find the critical value at α = 0.05.
g) What do you conclude?
The word "distribution" has several meanings in the financial world, most of them pertaining to the payment of assets from a fund, account, or individual security to an investor or beneficiary. Retirement account distributions are among the most...
Type of Card Maiing2050 Mailing 2 115 Mailing 3 105 55 Silver Gold Platinum Total 200 35 200 30 50 40 105 200 600 Total 340155
Step by Step Answer:
a The null hypothesis is that the proportion of customers applying for the different types of ...View the full answer
Business Statistics
ISBN: 9780321925831
3rd Edition
Authors: Norean Sharpe, Richard Veaux, Paul Velleman
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