Consider the following figure. which of the following statements are true?
a. 2 and 3 form a linear pair
b. 1 and 4 are supplementary angles
c. m1 + m2 + m 3 = 180
d. m3 + m4 = m1 + m2
e. 1 and 4 are vertical angles

(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.)