Answer:
(0.4958, 0.7422)
Step-by-step explanation:
Let p be the true proportion of water specimens that contain detectable levels of lead. The point estimate for p is
. The estimated standard deviation is given by
. Because we have a large sample, the 90% confidence interval for p is given by
where
is the value that satisfies that above this and under the standard normal density there is an area of 0.05. So, the confidence interval is
, i.e., (0.4958, 0.7422).
Answer:
Step-by-step:
It takes him 1.4 minutes to read one page.
Answer:
300 seconds. Q. Find the Equation for line red line. answer choices. y = 4. x = 4. y = 0 ... Write an equation relating the number of individual songs and the number of albums Jada can download. It costs $0.50 to download an individual song and $4 to download an album. Jada has $15 to spend downloading music.
Step-by-step explanation:
so it is Y hope you pass or i get it corrcet