Question: Imagine that one of the following 95 percent confidence intervals estimates the effect of vitamin C on IQ scores:

95% CONFIDENCE INTERVAL LOWER LIMIT UPPER LIMIT

1 100 102

2 95 99

3 103 106

4 90 111

5 91 98

1. Which one most strongly supports the conclusion that vitamin C increases IQ scores?
2. Which one implies the largest sample size?
3. Which one most strongly supports the conclusion that vitamin C decreases IQ scores?
4. Which one would most likely stimulate the investigator to conduct an additional experiment using larger sample sizes?

Price: $2.99

Solution: The downloadable solution consists of 1 pages
Deliverable: Word Document