Answer:
0
Step-by-step explanation:
8z +12 = 12
8z = 0
z =0
Answer:
11764
Step-by-step explanation:
199,988 ÷17
= 11764
Answer:
No Solution
Step-by-step explanation:
Since -18 > 18 is not true, this inequality is always false
Answer:
a) 96% CI: 
b) If we estimate that the fraction of voters is 0.57, we can claim with 96% confidence that the error is equal or less than 0.06 from the estimated proportion.
Step-by-step explanation:
The proportion of the sample is

The standard deviation of the sample proportion is

For a 96% CI, the z-value is z=1.751.
Then, the 96% CI can be written as:

b) If we estimate that the fraction of voters is 0.57, we can claim with 96% confidence that the error is equal or less than 0.06 from the estimated proportion.