For the next four problem do the following:

A.Identify the independent variable(s) - if any (and define them precisely and indicate whether they are qualitative or quantitative)

B.Identify the dependent variable - if any (and define them precisely and indicate whether they are qualitative or quantitative)

C. Identify the type of analysis that is appropriate: Two sample t test (identify pooled variance vs. paired), Chi-Square test (identify test of proportions or test of independence), ANOVA (identify one factor, randomized block, or 2-factor with replication), Correlation, or Regression

Question:

Jacobs Chemical Company will purchase new mixing machines from one of three manufacturers, based on which manufacturer's machine has the fastest mixing time. The company obtained data for the time to mix 20 standardized batches of material from each of the three manufacturers. Based on a statistical analysis of the average mixing time of the three machines, the company will make its choice.