Module 8 Homework

Student: Date: Instructor: Course: STAT_211_August_2018_9002(Watts) Assignment: Module 8 Homework: Textbook Chapter 10 2. A(n) is a point lying far away from other data points on a scatterplot. A. residual point B. outlier C. marginal point D. least-squares point 4. Given the linear correlation coefficient r and the sample size n, determine the critical values of r and use your finding to state whether or not the given r represents a significant linear correlation. Use a significance level of 0.05. r = 0.543, n = 25 A. Critical values: r = ± 0.487, no significant linear correlation B. Critical values: r = ± 0.396, significant linear correlation C. Critical values: r = ± 0.487, significant linear correlation D. Critical values: r = ± 0.396, no significant linear correlation 3. Based on the scatterplot, select the most likely value of the linear correlation coefficient r. A. − 1 B. − 0.5 C. 0 D. 1 1. Based on the scatterplot, select the most likely value of the linear correlation coefficient r. A. − 1 B. − 0.5 C. 1 D. 0 5. Given the linear correlation coefficient r and the sample size n, determine the critical values of r and use your finding to state whether or not the given r represents a significant linear correlation. Use a significance level of 0.05. r = 0.767, n = 25 A. Critical values: r = ± 0.487, no significant linear correlation B. Critical values: r = ± 0.487, significant linear correlation C. Critical values: r = ± 0.396, significant linear correlation D. Critical values: r = ± 0.396, no significant linear correlation 6. Given the linear correlation coefficient r and the sample size n, determine the critical values of r and use your finding to state whether or not the given r represents a significant linear correlation. Use a significance level of 0.05.