When the data are measured using an interval or ratio scale and the sample size is large, _____ statistics are appropriate. It is also assumed the sample data are collected from populations with normal (bell-shaped) distributions.
A) parametric
B) nonparametric
C) chi-square
D) ANOVA
E) MANOVA

Question

Quizplus · Accepted Answer

Parametric statistics are appropriate when the data are measured using an interval or ratio scale and the sample size is large, and when the sample data are collected from populations with normal (bell-shaped) distributions. ANOVA is a type of parametric analysis used to compare means between multiple groups. MANOVA is also a type of parametric analysis used to compare means between multiple groups where there are multiple dependent variables. Therefore, A is the best choice for this scenario. Nonparametric statistics are used when the assumptions for parametric testing are not met or when the data are measured using an ordinal or nominal scale. Chi-square analysis is used for categorical data testing for independence and goodness of fit.

When the Data Are Measured Using an Interval or Ratio