Travelocity Would Like to Test If the Standard Deviation for Roundtrip

Multiple Choice

Travelocity would like to test if the standard deviation for roundtrip airfares between New York and London is less than $200. A random sample of 22 roundtrip airfares between New York and London had a standard deviation of $142. The test statistic for this hypothesis test would be ______.

A) 8.67
B) 7.03
C) 13.36
D) 10.59