The weights of a random sample of 121 women between the ages of 25 and 34...

The weights of a random sample of 121 women between the ages of 25 and 34 had a standard deviation of 12 pounds. The weights of 121 women between the ages of 55 and 64 had a standard deviation 15 pounds. Test the claim that the older women are from a population with a standard deviation greater than that for women in the 25 to 34 age group. Use α = 0.05.

Expert Solution

Given

(5) Conclusion

It is concluded that the null hypothesis Ho is rejected. Therefore, there is enough evidence to claim that the population variance σ12 is less than the population variance σ22, at the α=0.05 significance level.

orchestra answered 1 year ago

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