Consumers are randomly selected and asked to try one of three ...

[jparksx]

Consumers are randomly selected and asked to try one of three products and then give it a score between 1 and 10, with a higher score being better. Which test would you use to determine if the product evaluations differed?
 a. A chi-square test
 
  b. A test of proportions
 
  c. Kruskal-Wallis test
 
  d. Wilcoxon rank sum test

Question 2

Jean is examining variation on a control chart. One of the machines was misaligned and is operated by an inexperienced worker. The variation caused by these factors is caused by ____.
 a. assignable causes
  b. in statistical control causes
  c. common causes
  d. in control causes

[leannegxo]

Answer to Question 1

c

Answer to Question 2

a