Six different machines are being considered for use in manufacturing rubber seals. The machines are being compared with respect to tensile strength of the product. A random sample of four seals from each machine is used to determine whether the mean tensile strength varies from machine to machine. The following are the tensile-strength measurements in kilograms per square centimeter 101: Machine 123456 17.5 16.4 20.3 14.6 17.5 18.3 16.9 19.2 15.7 16.7 19.2 16.2 15.8 17.7 17.8 20.8 16.5 17.5 18.6 15.4 18.9 18.9 20.5 20.1 Perform the analysis of variance at the 0.05 level of significance and indicate whether or not the mean tensile strengths differ significantly for the six machines.
1.1 Variable: a characteristic that varies from person to person, object to object, etc. Categorical: outcome/answer is a catagory Quantitative: outcome/answer is a number that represents a quantity Explanatory: explains the change in the response variable Response: changes based on the explanatory variable Case: is who/what we record the variable about Ex: The individual movie title in worksheet 1.1 1.2 Population: The whole group of specific individuals you are interested Sample: A small group drawn from the larger population Statistical Inference: How the sample data reflects on the greater population Sampling bias: occurs when the method of selecting the sample causes the sample to differ in some relevant way from the populat
