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  3. we compare the yearly income of a designer in bagu

We compare the yearly income of a designer in Baguio and Manila, two cities in the...

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We compare the yearly income of a designer in Baguio and Manila,two cities in the Philippines. It is known from experience that thevariance of yearly incomes in Baguio is ₱40,000 and the variancefor yearly incomes in Manila is ₱90,000. A random sample of 20families was taken in Baguio, yielding a mean yearly income of₱47,000, while a random sample of 30 families was taken in Manila,yielding a mean yearly income of ₱52,000. At the alpha= .01significance level, test whether or not there is a significantdifferent in average yearly income between the two cities.

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test whether or not there is a    See Answer
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