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The annual incomes for a random sample of 16 engineers working in Dubai have a standard...

The annual incomes for a random sample of 16 engineers working in Dubai have a standard deviation of $14,900. The annual incomes for a random sample of 17 engineers working in Abu Dhabi have a standard deviation of $9600. Using this information, can you conclude that the standard deviation of the annual incomes for engineers is greater in Dubai than in Abu Dhabi? Use = 0:05: a. Identify the claim and state H0 and Ha: b. Find the critical value and identify the rejection region. c. Find the standardized test statistic. d. Decide whether to reject the null hypothesis. e. Interpret the decision in the context of the original claim.

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