2
10.5.3 Quiz Factoring and Graphing
Question 3 of 10
2 Points
What are the zeros of fx) = x(x - 7)?
O A. X = 0 only
OB. x= 0 and X= 7
OC. x = 0 and x = -7
O D. x = 7 only
SUBMIT

(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.)