6) In a bag, there are 5 gray marbles, 8 black marbles, and 1 white marble. If 1 point Jacob draws a marble from the bag without looking, which statement is
true about the probability of drawing a black marble? *
The probability of drawing a black marble is 6/14
The probability of drawing a black marble is 8/6
The probability of drawing a black marble is closer to 0 than it is to 1.
The probability of drawing a black marble is closer to 1 than it is to 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.)