What Type of Car Is More Popular Among College Students $=.396226$

question 65

Multiple Choice

What type of car is more popular among college students, American or foreign? One hundred fifty-nine college students were randomly sampled and each was asked which type of car he or
She prefers. A computer package was used to generate the printout below for the proportion of
College students who prefer American automobiles. SAMPLE PROPORTION $=.396226$
SAMPLE SIZE $=159$
UPPER LIMIT $=.46353$
LOWER LIMIT $=.331114$

Is the sample large enough for the interval to be valid?

• A) No, the sample size should be at \(10 \%\) of the population.
• B) Yes, since \(n > 30\).
• C) Yes, since \(n \hat { p }\) and \(n q\) are both greater than 15 .
• D) No, the population of college students is not normally distributed.

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