STATISTICAL TECHNIQUES AND TOOLS
SAMPLING DISTRIBUTION
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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According to a television commercial, 3 out of 4 dentists recommend Trident gum for patients who have dental work. A consumer magazine has surveyed 100 dentists to see if this claim is true. Which is closest to the probability that between 70 and 74 percent of the dentists recommend Trident?
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.9238
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.2846
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-.2846
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.0762
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Explanation:
Detailed explanation-1: -Shape of the sampling distribution is always the same shape as the population distribution, no matter what the sample size is Sampling distribution of the mean is always right skewed since means cannot be smaller than 0.
Detailed explanation-2: -Taxi fares in New York City are normally distributed with a mean fare of $22.50 and a standard deviation of $2.20. A tourism agency surveys 25 of its clients who have recently traveled to New York City to determine whether or not this information is accurate.
There is 1 question to complete.