An article in Nuclear Engineering International (Feb 1988, p.33) describes several characteristics of fuel rods used in a reactor owned by an electric utility in Norway. Measurements on the percentage enrichment of 12 rods were reported as follows: 2.94 3.00 2.90 2.75 3.00 2.95
2.90 2.75 2.95 2.82 2.81 3.05

Find a 99% two sided confidence interval on the mean percentage of Are you comfortable with the statement that the mean percentage of enrichment is 2.95 percent? Why?

For a function f(x), a) if f(7) = 22 then f^-1(22) = b) f^-1(f(c)) =

240 seventh graders and two-thirds of the students participate in after-school activities how many students participate in after-school activities

Identify the statement below as either descriptive or inferential statistics. upper a certain website sold an average of 117 books per day last week. is the statement an example of descriptive or inferential statistics? a. it is an example of descriptive statistics because it uses a sample to make a claim about a population. b. it is an example of inferential statistics because it uses a sample to make a claim about a population. c. it is an example of inferential statistics because it summarizes the information in a sample. d. it is an example of descriptive statistics because it summarizes the information in a sample.