A random sample of 45 Hollywood movies made since the year 2000 has a mean length of 111.7 minutes. If it is known that the population standard deviation of Hollywood movie times is 13. 8 minutes, construct a 95% confidence interval for the mean length of all Hollywood movies made since the year 2000.

Which equation matches the graph shown ?

Iq scores for adults age 20 to 34 years are normally distributed according to n(120, 20). in what range does the middle 68% of people in this group score on the test?

Even if a person is in very good shape, applying to be a police officer requires commitment to fitness. applicants must pass a physical fitness test. in order to prepare for the test, janet purchases an activity tracker to court her steps. her goal is to walk 10,000 steps each day. she measures heard average step length to be 30 inches. play janet runs, her average steps length increases to 36 in. how many steps would she have to take to run 1 mile 50280 round to the nearest step