Nearly 90 percent of shale oil can be recovered in surface mining, while less than 60 percent can be recovered in underground mining. Surface mining is therefore less expensive, making it more attractive to miners.

Which statement about shale-oil mining is false?

A)

No significant environmental or social impacts are noted.

B)

Oil shale must be processed on-site before transport.

C)

The volume of waste will exceed the volume of oil mined.

D)

It is very expensive to restore the mining operation when finished.

E)

Oil-shale mining was very popular during the height of the fuel shortage in the 1970s.

In a recent telephone survey, 5,000 randomly selected teenagers were asked to cite their primary social network site. six of 10 teenagers said they use mybook as their primary social network site. a 95% confidence interval to estimate the true proportion of teenagers who use mybook as their primary social network site is found to be (0.2964, 0.9036). which of the following is a correct interpretation of the confidence level? ninety-five percent of all samples of this size would yield a confidence interval of (0.2964, 0.9036). there is a 95% chance that the true proportion of teenagers who use mybook as their primary social network site is in the interval (0.2964, 0.9036). ninety-five percent of the time, the procedure used to generate this interval will capture the true proportion of teenagers who use mybook as their primary social network site. ninety-five percent of all the samples of size 5,000 lie in the confidence interval (0.2964, 0.9036).