February 27, 2017

Homework Help: Prob and Stats

Posted by Dave on Monday, September 5, 2011 at 3:56pm.

The Roper Organization conducted identical surveys 5 years apart. One question asked of women was Are most men basically kind, gentle, and thoughtful? The earlier survey revealed that, of the 3,000 women surveyed, 2,010 said that they were. The later revealed 1,530 of the 3,000 women surveyed thought that men were kind, gentle, and thoughtful. At the .05 level, can we conclude that women think men are less kind, gentle, and thoughtful in the later survey compared with the earlier one? Hint: For the calculations, assume the latter survey as the first sample.
The decision rule is to reject Ho if z is ________? The test statistic is z = _______? Please show calculations.

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