Suppose that for a random sample of 250 firms that revalued their fixed assets, the mean ratio
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Suppose that for a random sample of 250 firms that revalued their fixed assets, the mean ratio of debt to tangible assets was 0.625 and the sample standard deviation was 0.176. For an independent random sample of 450 firms that did not revalue their fixed assets, the mean ratio of debt to tangible assets was 0.598 and the sample standard deviation was 0.164. Find a 95% confidence interval for the difference between the two population means.
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Related Book For 
Statistics For Business And Economics
ISBN: 9781292315034
9th Global Edition
Authors: Paul Newbold, William Carlson, Betty Thorne
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