Please explain your answer 1 Could we use the Sign Test to t

Please explain your answer.

1. Could we use the Sign Test to test a claim about a population if the data is not from a simple random sample?

2. Could we use the Wilcoxon Signed-Ranks Test for populations that are very far from normal?

3. Could we use ANOVA for populations that are very far from normal?

Solution

1.No, we can not use the Sign Test to test a claim about a population if the data is not from a simple random sample as the assumption of the test is that the data should be from simple random sampling.

2.Yes, Wilcoxon Signed-Ranks Test for populations can be used when are very far from normal as this test isnon parametric and does not follow normal distribution.

3.No, ANOVA for populations can not be used when are very far from normal as ANOva is a parametric test.