He can travel about 157.62 miles on 7.4 gallons of gas
Answer:
(4,-3)
Step-by-step explanation:
is 4<3? no
is -2<3? yes but is 1>_ 8? no
etc etc
9n+1 :) Please give brainliest!
Answer:
The 85% confidence interval is (0.2187, 0.2613).
Step-by-step explanation:
We have a large sample of size n = 830 Americans over 45. We have observed that 631 people don't smoke. Let p be the population proportion of Americans over 45 who smoke. An point estimate of p is
and an estimate of the standard deviation of
is
= 0.0148. Therefore, because we have a large sample, the 85% confidence interval for the population proportion is given by
where
is the 7.5th quantile of the standard normal distribution, i.e., -1.4395. Therefore the 85% confidence interval is
or equivalently (0.2187, 0.2613).