An investment analyst is evaluating the 10-year mean return on investment for industry-specific exchange-traded funds (ETFs) for three sectors: financial, energy, and technology. The analyst obtains a random sample of 30 ETFs for each sector and calculates the 10-year return of each ETF.

perform one-way analysis of variance (ANOVA). Evaluate whether the average return of at least one of the industry-specific ETFs is significantly different. Use a 5% level of significance.

Define the null and alternative hypothesis in mathematical terms and in words.

Report the level of significance.

Include the test statistic and the P-value.

Provide your conclusion and interpretation of the test. Should the null hypothesis be rejected? Why or why not?

Does a side-by-side boxplot of the 10-year returns of ETFs from the three sectors confirm your conclusion of the hypothesis test? Why or why not?

test statistic = 55.07P-value = 0.0