Answer:
Student A: 45 feet
Student B: 38
I hope this helps!
Step-by-step explanation:
Student A: 3x = y
3(15) = y
= 45 feet
Student B: 8 + (2x) = y
8 + (2 x 15) = y
8 + 30 = y
= 38 feet
Answer:
d.)
Step-by-step explanation:
19.72 yards hope I helped
Answer:
The larger sample sizes gives a narrower confidence interval
Step-by-step explanation:
The larger sample sizes gives a narrower confidence interval, that is, a more "precise" estimation of the elections results.
In a confidence interval of proportions, we have that the lower end is given by:
In which is the probability of a sucess, is a value from the Z table and n is the length of the sample.
The upper end is given by:
As n increases, the difference between U and L decreases. This means that the confidence interval gets narrower.