Two variables are correlated with r=−0.937. What is the best description of the strength and direction of the association between the variables?

strong positive

moderate positive

moderate negative

strong negative

Complete the solution of the equation. find the value of y when x equals to 6 4x+y=20

The difference of two numbers is 40. find the numbers if 0.3 parts of one number is equal to 37.5% of the other one.

(b) suppose that consolidated power decides to use a level of significance of α = .05, and suppose a random sample of 100 temperature readings is obtained. if the sample mean of the 100 temperature readings is x⎯⎯ = 60.990, test h0 versus ha and determine whether the power plant should be shut down and the cooling system repaired. perform the hypothesis test by using a critical value and a p-value. assume σ = 5. (round your z to 2 decimal places and p-value to 4 decimal places.)