In testing a hypothesis about means,if the sample size was less than 30,then the appropriate statistical test would be?
A)chi-square test
B)t-test
C)z-test
D)one-way ANOVA
E)cross-tabulation

Question

Quizplus · Accepted Answer

If the sample size is less than 30, the appropriate statistical test would be the t-test. The z-test assumes that the data is normally distributed with a standard deviation known, while the t-test allows for the estimation of the standard deviation from the sample data, making it more appropriate for smaller sample sizes. The chi-square test is for testing associations between categorical variables, while ANOVA is for testing differences between means of more than two groups. Cross-tabulation is a method for analyzing categorical data.

In Testing a Hypothesis About Means,if the Sample Size Was