Answer to Question #140086 in Statistics and Probability for Laura Kafui

Question

In each of the following research situations below, determine whether the data should be analyzed with a parametric test, a nonparametric test, or both. Give reasons for your answer in each situation.
(i). You want to compare males and females scores obtained from an aptitude test where scores on the aptitude test range between 0 and 100.
(ii). You want to find out whether or not basketball players are taller than the general population.
(iii). You want to find out whether or not a difference exists between males and females in their like or dislike for statistics.
(iv). You want to find out among a sample of eligible voters in the Ghanaian population, whether the political party they voted for in the 2016 general elections was the same as the political party they voted for in the 2012 general elections.
(v).You want to compare two groups of university students on their levels of intelligence, where intelligence scores could range between 30 and 150

Answer 1

(i). You want to compare males and females scores obtained from an aptitude test where scores on the aptitude test range between 0 and 100.

PARAMETRIC -this is normal distribution.

(ii). You want to find out whether or not basketball players are taller than the general population.

PARAMETRIC -this is normal distribution.

(iii). You want to find out whether or not a difference exists between males and females in their like or dislike for statistics.

NONPARAMETRIC - is not normal distribution.

(iv). You want to find out among a sample of eligible voters in the Ghanaian population, whether the political party they voted for in the 2016 general elections was the same as the political party they voted for in the 2012 general elections.

PARAMETRIC - tests have greater statistical power

(v).You want to compare two groups of university students on their levels of intelligence, where intelligence scores could range between 30 and 150

PARAMETRIC -this is normal distribution.