PLZ CAN YOU EXPLAIN HOW YOU SOLVED THE ANSWERS 1) Find the mean
12,13,15,15,16,19,19,19,20,21,25
A) 17.64
B) 19
C) 15

2) find the mean
42,53,54,55,59,59,60,63,65,67,70,71 ,73
A) 60
B) 59
C) 60.85

3) find the mean
6,6,8,7,10,14,13,6,5,7,8,10,13,6,7< br /> A) 6
B) 8.4
C) 7

Which of those sequences is a geometric sequence

Factor and solve to find roots x squared -x - 90 =0

(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.)