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14 Dec 2021
Given information
According to a television commercial, of the dentists agree that Ultrafresh toothpaste is the best on the market.
Step-by-step explanation
Step 1.
Let the proportion of dentists agreeing for the Ultrafresh toothpaste is the best on the market be ,
The null hypothesis is as stated below,
The alternative hypothesis is as stated below,
Therefore, this hypothesis test is for a single mean.
Option .
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