Answer:
z(critic) = -2.33
Step-by-step explanation:
In this case this is a population proportion test because the observations are simple random sampled and there is a fixed number of trials with only two possible options. Also, n is big enough.
Since this is a population test, the test statistic is z.
Also, this is a one tailed tast because the claim is that the population proportion is less than 0.57.
In this case, for a 0.01 significance level, z(critic) = -2.33
Answer:
π·6^2
Step-by-step explanation:
3750(0.20)=$750
1/5 as a percent is 20% and as a fraction it is 0.20
Answer:
(8,5)
Step-by-step explanation:
x=8
5*8-2y=30
40-2y=30 . subtract 40 from both sides
-2y=-10 . divide both sides by-2
y=5
