Question: The following table presents the returns of Fidelity's Select Automotive Fund; the data are also available on the text website, labeled Auto motive. This mutual fund invests primarily in companies engaged in the manufacturing, the marketing, or the sales of automobiles, trucks, specialty vehicles, parts, tires, and related services.
a. State the null and the alternative hypotheses in order to test whether the standard deviation is greater than 35%.
b. What assumption regarding the population is necessary to implement this step?
c. Calculate the value of the relevant test statistic.
d. Use Excel's function (either CHISQ.DIST.RT or CHISQ.DIST) to calculate the p -value.
e. At α = 0.05 what is your conclusion?