Most individuals are aware of the fact that the average annual repair cost for an automobile depends on the age of the automobile. a researcher is interested in finding out whether the variance of the annual repair costs also increases with the age of the automobile. a sample of 26 automobiles 4 years old showed a sample standard deviation for annual repair costs of $170 and a sample of 25 automobiles 2 years old showed a sample standard deviation for annual repair cost of $100. a. state the null and alternative versions of the research hypothesis that the variance in annual repair costs is larger for the older automobiles. b. at a .01 level of signifigance, what is your conclusion? what is the p-value? discuss the reasonableness of your findings.