× Question 7- 0 of 1 point Suppose the mean 1Q in a large population is 100, wit
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× Question 7- 0 of 1 point Suppose the mean 1Q in a large population is 100, with a standard deviation of 15. A researcher draws 200 samples of size 40 plots the sample means and calculates the mean and standard deviation of the sample means. Which of the following results would be expected from this research? The mean of the sample means will be less than 100, and the distribution of the sample standard deviations will approximate a normal distribution The mean of the sample means will be about 100, and the standard deviation of the sample means will be smaller than 15 The mean of the sample means will be greater than 100, and the distribution of the sample standard deviations will approximate a normal distribution The mean of the sample means will be about 100, and the standard deviation of the sample means wil be greater than 15.Explanation / Answer
Ans:
The meam of the sample means will be about 100, and the standard deviation of the sample means will be smaller than 15.
According to central limits theorem.
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