Mathematics, 20.07.2019 00:10, jahjah1158
Greenbeam ltd. claims that its compact fluorescent bulbs average no more than 3.55 mg of mercury. a sample of 40 bulbs shows a mean of 3.62 mg of mercury.
(a)
state the hypotheses for a right-tailed test, using greenbeam’s claim as the null hypothesis about the mean.
(b)
assuming a known standard deviation of 0.23 mg, calculate the z test statistic to test the manufacturer's claim. (round your answer to 2 decimal places.)
(c)
at the 1 percent level of significance (α = 0.01) does the sample exceed the manufacturer’s claim?
(d)
find the p-value. (round your answer to 4 decimal places.)
Answers: 1
Other questions on the subject: Mathematics
Mathematics, 21.06.2019 14:40, kiasiab17
The physical fitness of an athlete is often measured by how much oxygen the athlete takes in (which is recorded in milliliters per kilogram, ml/kg). the mean maximum oxygen uptake for elite athletes has been found to be 60 with a standard deviation of 7.2. assume that the distribution is approximately normal.
Answers: 3
Mathematics, 21.06.2019 21:30, jstringe424
This is a map of the mars exploration rover opportunity predicted landing site on mars. the scale is 1cm : 9.4km. what are the approximate measures of the actual length and width of the ellipse? i mostly need to know how to set it up : )
Answers: 3
Do you know the correct answer?
Greenbeam ltd. claims that its compact fluorescent bulbs average no more than 3.55 mg of mercury. a...
Questions in other subjects:
Mathematics, 30.05.2020 15:57
Mathematics, 30.05.2020 15:57
