Confidence Intervals for Correlation and Proportion

Question 1 out of 3.

Select all of the following choices that are possible confidence intervals on the population value of Pearson's correlation:

1. (-0.4, 0.6)
2. (0.3, 0.5)
3. (-0.85, -0.47)
4. (0.72, 1.2)

Question 2 out of 3.

A sample of 28 was taken from a population, and r = .45. What is the 95% confidence interval for the population correlation?

1. (.058, .842)
2. (.093, .877)
3. (.058, .687)
4. (.093, .705)

Question 3 out of 3.

The sample correlation is -0.8. If the sample size was 40, then the 99% confidence interval states that the population correlation lies between -.909 and