Concept Research - Using a search engine or in the virtual

6.1 Concept Research

Instructions

1.    Using a search engine or in the virtual library database, conduct research taking into consideration the following concepts:

· Point estimator

· Confidence interval

· t-distribution

· Confidence level

· Proportion estimation

2. How do you determine the 95% confidence interval?

3. Define the sample size needed to develop a 90% confidence interval for means and proportion (add the numbers required)?

4.How are the values of 1.96 and 2.58 obtained in the interval estimation formula, and to what confidence levels do they relate to each other?

5. Explain the limitations of a point estimator.

Contribute a minimum of 2 pages. It should include at least 2 academic sources, formatted and cited in APA.