16 Use technology to construct the confidence intervals for the population variance \( \sigma^{2} \) and the population standard deviation \( \sigma \). Assume the sample is taken from a normally distributed population. \[ =0.99, s=34, n=20 \] The confidence interval for the population variance is ( \( \square \). (Round to two decimal places as needed.) The confidence interval for the population standard deviation is ( (Round to two decimal places as needed.)

Correlation is a relatively quick way to test for causality as well as statistical significance. (A) True (B) False

The sign of the correlation indicates whether the correlation between the independent variable and dependent variable is negative or positive (A) True (B) False

What is the test statistic for correlation? (A) i (B) F (D) z (D)

What do correlations less than zero signify? A that the relationship between the variables is negative B correlation statistic can't have negative value (C) We need to square the correlations to get rid of the negative numbers (D) There is an error made

The bivariate hypothesis-testing procedure that is used when both the independent and dependent variables are continuous is (A) Continuous hypothesis test (B) Pearson's correlation (C) Analysis of variance (D) continuous samples t-test