Ages of Dogs The average age of pet dogs is 4.3 years. Two random samples of pet owners who own dogs are selected. Sample 1 of 13 dog owners was selected from owners who live in Miami. The standard...




Ages of Dogs
The average age of pet dogs is 4.3 years. Two random samples of pet owners who own dogs are selected. Sample 1 of 13  dog owners was selected from owners who live in Miami. The standard deviation of the ages of the dogs in this sample is 1.1 years. Sample 2 of 10 dog owners was selected from dog owners who live in Boston. The standard deviation of these dogs was 0.5 year. At α=0.01, can it be concluded that there is a difference in the variances? Use the critical value method and tables.





(a)State the hypotheses and identify the claim.

















:H0  ▼(Choose one)





:H1 ▼(Choose one)



This hypothesis test is a ▼(Choose one) test.























(b)Find the critical value. Round the answer to at least two decimal places.

Critical value is


(c)Compute the test value. Round the standard deviations and

F  score values to at least two decimal places.

F=



(d)Make the decision.










▼(Choose one) the null hypothesis.













(e)Summarize the results.










There is ▼(Choose one) that the variances are different.


















Jun 04, 2022
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