Remember
and
if
where a=a, then b=c
so
so
9-n=3
-n=-6
n=6
answer is 6
and
if
so
so
9-n=3
-n=-6
n=6
answer is 6
If s = -5 and t = 3, find the value of s 2t. a.75 b.225 c.-75 d.30
1 answer:
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Answer:
The 99% confidence interval for the proportion of the population who are obese is (0.25, 0.282)
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:
99% 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 99% confidence interval for the proportion of the population who are obese is (0.25, 0.282)