Author Question: A marketing firm is interested to know whether the median age of college students is 21 years. A ... (Read 128 times)

folubunmi · **on:** Jun 24, 2018

A marketing firm is interested to know whether the median age of college students is 21 years. A sample of 80 college students is taken. Thirty of the students were under 21, 45 of the students were over 21, and 10 were 21 years old.

The conclusion is thatA) the median age of college students is significantly different from 21.
B) the median age of college students is not significantly different from 21.
C) the median age of college students is significantly older than from 21.
D) the median age of college students is significantly younger than from 21.

Question 2

Which of the following tests would not be an example of nonparametric method?

A) Wilcoxon signed-rank test
B) Mann-Whitney U-Test
C) Kruskal-Wallis One-Way Analysis of Variance
D) 2 test