FORESTRY
AGRICULTURAL STATISTICS AND ECONOMICS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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78% is a population and 72% is a sample.
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72% is a population and 78% is a sample
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78% is a parameter and 72% is a statistic
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72% is a parameter and 78% is a statistic
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Detailed explanation-1: -At a particular college, 78% of all students are receiving some kind of financial aid. The school newspaper selects a random sample of 100 students and 72% of the respondents say they are receiving some sort of financial aid. Which of the following is true? 78% is a population and 72% is a sample.
Detailed explanation-2: -10 Percent Rule: The 10 percent rule is used to approximate the independence of trials where sampling is taken without replacement. If the sample size is less than 10% of the population size, then the trials can be treated as if they are independent, even if they are not.
Detailed explanation-3: -10 Percent Condition: The sample is less than 10 percent of the population.
Detailed explanation-4: -Regardless of the distribution of the population, as the sample size is increased the shape of the sampling distribution of the sample mean becomes increasingly bell-shaped, centered on the population mean.