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Example 129
Example 129: An economist claims that less than two-thirds of married women spent over $1000 on their wedding gown. Glamour magazine sponsored a survey of 2500 prospective brides and found that 65% of them spent more than $1,000 dollars on their wedding gown. Use a 0.01 significance level to test the claim that less than two-thirds of married women spent over $1000 on their wedding gown. If these results were obtained from internet users who voluntarily went to the web to answer the survey does that affect the result of the survey in any way?
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