Answer
Let p = college students have Credit Cards
As per claim
p = 39% = 0.39
Null Hypothesis: $H_{o} = 0.39$ (represents the claim)
Alternative Hypothesis: $H_{a} \ne 0.39$
Work Step by Step
As given above
Elementary Statistics: Picturing the World (6th Edition)
by Larson, Ron; Farber, Betsy
Published by
Pearson
ISBN 10:
0321911210
ISBN 13:
978-0-32191-121-6
Chapter 7 - Hypothesis Testing with One Sample - Section 7.1 Introduction to Hypothesis Testing - Exercises - Page 360: 30
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