Answer:5.5
Step-by-step explanation:
You take the ratio divide then multiply by 2
I'm gonna gonna go with C
Answer:
steps below
Step-by-step explanation:
Total = 12+17+14 = 43
Without replacement:
C(12,5) / C(43,5) = (12!/5!*7!) / (43!/5!*38!) = (12*11*10*9*8) / (43*42*41*40*39)
= 95040 / 115511760
= 0.00082
≈ 0.082%
with replacement: 12/43*12/43*12/43*12/43*12/43 = 12⁵ / 43⁵
Answer:
8) B
9) D
*ASSUMING THE ALPHA-LEVELS FOR THESE PROBLEMS IS .05.*
Step-by-step explanation:
8) Left-tailed test means that the alternate hypothesis is x is less than a certain value. The p-value, on the calculator, is normalcdf(-999, -1.83) if it's left-tailed, which is .0336. In that case, we would reject the null hypothesis, because the alpha-level is above our p-value.
9) Two-tailed test means that the alternate hypothesis is x does not equal a certain value. The p-value for this, on the calculator, is normalcdf(1.95,999) times two, because we need both tails. In this case, we would fail to reject the null hypothesis, assuming our alpha-level is .05.
- normalcdf(1.95,999) = .0256*2 = .0512.
Well lets write it out
30,000
2,300
83
2
=32,385
all you had to do was add them