Find the margin of error for the given values of \( c, \sigma \), and \( n \). \( c=0.95, \sigma=3.8, n=64 \) Click the icon to view a table of common critical values. \( E=\square \) (Round to three decimal places as needed.)

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

The appropriate degrees of freedom for the distribution used in correlation is \( \mathrm{df}=\mathrm{N}-\mathrm{k} \). (A) True (B) False

(a) The percentage of infected people reaches a maximum after 11 days. (Simplify your answer.) (b) The maximum percent of the population infected is \( \square \% \). (Round to the nearest hundredth as needed.)

It is appropriate to model nonlinear relationships using correlational analysis. A) True (B) False