A popular commercial states that 4 out of 5 dentists who chew gum prefer sugarless gum. Suppose
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A popular commercial states that 4 out of 5 dentists who chew gum prefer sugarless gum. Suppose a random sample of 100 gum-chewing dentists is taken and 75 are found to prefer sugarless gum. Test, at the 10% level of significance, the null hypothesis that the commercial’s claim is true.
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Related Book For 
Statistics For Business And Financial Economics
ISBN: 9781461458975
3rd Edition
Authors: Cheng Few Lee , John C Lee , Alice C Lee
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