Mathematics
Statistics
A market researcher working for the bank in Exercise 2

A market researcher working for the bank in Exercise 2 wants to know if the distribution of

Question:

A market researcher working for the bank in Exercise 2 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 P-value.
g) What do you conclude?

Distribution
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...

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Type of Card SilverGold Platinum Total 200 35 200 200 600 Mailing 120 50 Miling 2 115 50 55 155 30 Mailing 3105 Total 40 105 340

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a The null hypothesis is that the proportion of customers applying for the three ...View the full answer

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Stats Data and Models

ISBN: 978-0321986498

4th edition

Authors: Richard D. De Veaux, Paul D. Velleman, David E. Bock

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Question Posted: Jan 20, 2016 06:18 AM

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