Question

Engineers at a large automobile manufacturing company are trying to decide whether to purchase brand A or brand B tires for the company's new models. To help them arrive at a decision, an experiment is conducted using 12 of each brand. The tires are run until they wear out, with the accompanying results. Test the hypothesis that there is no difference in the average wear of the two brands of tires. Assume the populations to be approximately normally distributed with equal variances. Use a P-value Click here to view the experiment results Click here to view page 1 of the table of critical values of the tdistribution Click here to view page 2 of the table of critical values of the t-distribution Let Brand A be population 1 and Brand B be population 2. State the nul and alternative hypotheses H -Hz H P2

Answer 1

This problem based on basic hypothesis analysis.

GNen that Test using onducted Enferiment Each band tyes The fund that no difference in tne dwo brands tives aerage P value ASSume O.2 Null hyethe is Alternative hesthesis H i- O CTwo tauled test)