Mean rate of return on a sample

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Reference no: EM1399084

A stockbroker at Critical Securities reported that the mean rate of return on a sample of 10 oil stocks was 12.6 percent with a standard deviation of 3.9 percent. The mean rate of return on a sample of 8 utility stocks was 10.9 percent with a standard deviation of 3.5 percent.

At the .05 significance level, can we conclude that there is more variation in the oil stocks?

Ho : σ1² ≤ σ2² H1 : σ1² > σ2²

The test statistic is (Round your answer to 2 decimal places.)

Reference no: EM1399084

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