Question

please answer them all, it's only three questions

the three distributions involved in every application of inferential statistics (confidence intervals and hypothesis testing for example) are:

1. Sample, sample means, sampling distribution
2. Proportions, population proportion, sampling mean
3. Sample, sampling distribution, population
4. Sample statistic, population proportions, sample means

In order to ensure samples are representative of their population, what type of method should we follow in choosing a sample?

1. Equal Probability of Selection Method
2. Simple Random Sampling Method
3. Probability Sampling Method
4. None of the above

The goal of inferential statistics is to:

1. Use population characteristics to estimate sample characteristics
2. Describe a distribution of data
3. Use sample characteristics to estimate population characteristics
4. To predict future behaviors of test subjects

Answer 1

Ans 1 ) the three distributions involved in every application of inferential statistics (confidence intervals and hypothesis testing for example) are:

1. Sample, sampling distribution, population

Ans 2 ) In order to ensure samples are representative of their population, we should  follow in choosing a sample is  Simple Random Sampling Method

Ans 3 ) The goal of inferential statistics is to:

1. Use sample characteristics to estimate population characteristics