4
practice testMultiple Choice

Practice Test

Question 4 • Statistics

A flight attendant selects a random sample of 201 travelers. For each, he records the class in which the person travels and whether they have carry-on luggage. He would like to know if there is convincing evidence that the class in which a person travels is associated with having carry-on luggage. Let alpha is equal to 0 point 0 5 What are the hypotheses for this test?

Answer
A
cap h sub 0 : The proportion of travelers who have carry-on luggage is not the same in the types of class. cap h sub A : The proportion of travelers who have carry-on luggage is the same in the types of class.
B
cap h sub 0 : There is an association between class and carry-on luggage. cap h sub A : There is no association between class and carry-on luggage.
C
cap h sub 0 : Class is not independent of carry-on luggage. cap h sub A : Class is independent of carry-on luggage.
D
cap h sub 0 : Class is independent of carry-on luggage. cap h sub A : Class is not independent of carry-on luggage.
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