FORESTRY
AGRICULTURAL STATISTICS AND ECONOMICS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Which one of the following statements is true about Student’s t distribution?
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The density curve of the t distribution is symmetric and centered at the true mean of the population.
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The density curve of the t distribution has heavier “tails” than the density curve of the standard Normal distribution.
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The density curve of the t distribution more closely resembles the density curve of the standard Normal distribution when the number of degrees of freedom is small.
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None of the above
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Explanation:
Detailed explanation-1: -Answer and Explanation: The t distribution can be used when finding a confidence interval for the population mean whenever the sample size is small, hence, the correct option is A.
Detailed explanation-2: -The TRUE answers are: A. The t distribution gets closer to the standard normal distribution as the degrees of freedom increase.
Detailed explanation-3: -Which statement best describes the properties of Student’s t-distribution? The t-distribution is: symmetrical, and defined by a single parameter.
There is 1 question to complete.