IE 16 Analysis of Variance Quiz

Is it recommended to use ANOVA on two sample means?

• Yes

• No

What is the test that is needed if we need to compare more than two population means while maintaining control over the risk of committing or making a type I error?

(a)  

In the hypothesis testing, the null hypothesis states that all means are all equal (H0 = u1 = u2 = u3)

• True

• False

In performing ANOVA it is required to do it by hand?

• True

• False

What are the two assumptions of ANOVA? (Check only two options out of those four)

• All random sampling are independent

• The ANOVA must not follow an F distribution

• each of the samples should be skewed and are independent

• The r population in the study is normally distributed, and has means that may or may not be equal, but has equal variances.

Is it possible to use T-test to several sample means

• Yes

• No

What is the name of the statistician that founded ANOVA?

(a)  

What is the numerator of degrees of freedom in ANOVA?

• r - 1

• n - 1

• n = 1

• r + 1

What is the meaning of ANOVA

(a)  

A statistical method for determining the existence of differences among several population means.

• T-test

• F distribution

• ANOVA

• Pearson's R