E connect Chapter 14 1000 points t0oo points Consider the fo

E connect Chapter 14 10.00 points t0.oo points Consider the following sample data x 853 10 2 380 210 90 20 2 b. Calculate the sample covariance. (Do not round intermediate calculations. Round your answer to 1 decimal place.) Sample covariance your answer to 2 decimal places Sample comelation coefficient C-1. Calculate the sample conrelation coetlicient (Do not round intermediate calculations. Round c-2. Interpret the sample correlation coeflicient The correlation ceticent rdcates that the strength ofthe postive inear relatorshgs moderate OThe correlation coefficient indicales that the strength of the negative linear relationship is weak The correladn cofioent r dates that the strength of te postive linear retab nstig stong The correlation oefont nd ales that the strength ofthe negative limear reldontpis moderate.

Solution

Q1

b). Covariance = 158.2

c1).   Correlation = 0.30

c2).

Option 1

The correlation coefficient indicate the strength of the positive linear relationship is moderate.

Minitab output

Covariances: x, y

           x          y

x     11.300

y    158.200 24610.800

Correlation: x, y

Pearson correlation of x and y = 0.300

P-Value = 0.624