Posted: September 12th, 2015

Using Case Exhibit 21.1-1 on page 527 in the textbook, formulate a statistical hypothesis appropriate for the consumer group’s purpose, then calculate the mean average miles per gallon.

Using Case Exhibit 21.1-1 on page 527 in the textbook, formulate a statistical hypothesis appropriate for the consumer group’s purpose, then calculate the mean average miles per gallon. Compute the sample variance and sample standard deviation. Determine the most appropriate statistical test using the 0.05 significance level. Click here to view the t-distribution table to assist you in solving this problem. Also, refer to the Z-table (Table A.2 in the appendix). Provide your findings in the space provided.