Answer:
ertyghujikol
Step-by-step explanation:
3456t7ujn
143 seats
because 2920 seats/20 sections=143 seats in each section
Answer:
The 95% confidence interval estimate for the true proportion of adults residents of this city who have cell phones is (0.81, 0.874).
Step-by-step explanation:
In a sample with a number n of people surveyed with a probability of a success of
, and a confidence level of
, we have the following confidence interval of proportions.

In which
z is the zscore that has a pvalue of
.
For this problem, we have that:

95% confidence level
So
, z is the value of Z that has a pvalue of
, so
.
The lower limit of this interval is:

The upper limit of this interval is:

The 95% confidence interval estimate for the true proportion of adults residents of this city who have cell phones is (0.81, 0.874).
H: 5 square yards is the correct answer, break the figure into squares and then multiply length by width to get area
700 x .03 x 20 = 420
420 + 700
1120 is in the account after 20 years