Which statement is correct? 3.56 x 102
1.09 x 104
s(4.08x10²X1.95 x 10)
3.56 x 102
<(4.08 x 10X(1 95 x 10%)
1.09 x 104
3.56 x 102
> (4.08x102x1.95 x 10)
1.09 x 10"
O
3.56 x 102
= (4.08x 10²X1.95 x 10)
1.09 x 10°

Which data set has a greater spread? why? set a: {38, 12, 23, 48, 55, 16, 18} set b: {44, 13, 24, 12, 56} has a greater spread because .

(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.)

The longer leg of a 30-60-90 trangle is 18