Qmb Chapter 6 Sampling Distributions

Chapter 6
Sampling Distributions

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1. If we have a test size of it of 100 and the approximate of the cosmos proportion is .10, we can estimate the sampling distribution of [pic]with a normal distribution.
settlement: True fuss: Easy

2. A sample size of 500 is sufficiently large enough to conclude that the sampling distribution of [pic] is a normal distribution, when the estimate of the community proportion is .995.
Answer: False Difficulty: Medium

3. The sampling distribution of [pic] must be a normal distribution with a mean 0 and mensuration deviation 1.
Answer: False Difficulty: Medium (REF)

4. For whatever sampled population, the population of any sample means is approximately normally distributed.
Answer: False Difficulty: Medium

5. The sampling distribution of a sample statistic is the probability distribution of the population of all attainable values of the sample statistic.
Answer: True Difficulty: Easy

6. A sample statistic is an deaf(p) point estimate of a population parameter if the mean of the populations of all possible values of the sample statistic equals the population parameter.
Answer: True Difficulty: Medium

7. A stripped-down variance, unbiased point estimate has a variance that is as small or smaller than the variances of any other unbiased point estimate.




Answer: True Difficulty: Medium

8. We can haphazard select a sample from an infinite population of authorization process measurements by sampling the process at antithetical and equally spaced time points.
Answer: True Difficulty: Medium (REF)

9. The reason sample variance has a ingredient of n-1 rather than n is that it makes the variance an unbiased estimate of the population variance.
Answer: True Difficulty: Hard

10. The standard deviation of all possible sample proportions increases as the sample size increases.
Answer: False Difficulty: Medium (REF)

11. The central limit theorem states that as sample size increases, the...If you want to get a rise essay, order it on our website: Orderessay



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