An auditor takes two independent samples - a random sample of 150 small businesses and a...

An auditor takes two independent samples - a random sample of 150 small businesses and a random sample of 100 medium-sized businesses. She finds that 27 small businesses and 12 medium-sized businesses are under financial distress. Answer the following questions using (1) formulae and (2) Excel.

Construct a 95% CI for the difference in the two (population) proportions of businesses which have financial distress.
Test, at the 5% level of significance, whether the (population) proportion of the small businesses that are under financial distress is at one least 2% higher than that of the medium-sided businesses.

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orchestra answered 1 year ago

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