Advanced Placement (AP), 01.03.2021 17:40 live4dramaoy0yf9

In a certain region, many of the residents are employed by the oil industry. Economists in the region investigated the difference between the salaries of those who work in oil-field jobs and those who work in non-oil-field jobs. Salaries were recorded for a random sample of 84 workers from the 1,200 oil-field workers and a random sample of 72 workers from the 50,000 non-oil-field workers in the region. A 95 percent confidence interval for μO−μN, where μO is the mean salary of all jobs of oil-field workers and μN is the mean salary of all jobs of non-oil-field workers, will be constructed. Have the conditions for inference with a confidence interval been met? A: Yes, all conditions have been met.

B: No, the data were not collected using a random method.

C: No, the size of at least one of the samples is greater than 10 percent of the population.

D: No, the sample sizes are not large enough to assume the distribution of the difference in sample means is normal.

E: No, the sample sizes are not the same.

Answers: 2

Show answers

Another question on Advanced Placement (AP)

Advanced Placement (AP), 23.06.2019 10:00

For each of the processes in model 1, decide as a group if the molecules in the substances have more order (are more organized) before or after the reaction. circle the side of the reaction with more order.

Answers: 3

Answer

Advanced Placement (AP), 23.06.2019 17:00

Read this scenario: a group of immigrant farmworkers forms an interest group to argue for workers' rights in their state. they cannot afford an experienced lobbyist, however, and are unable to secure meetings with important lawmakers. which negative aspect of interest groups does the scenario illustrate? a. lacking power without funding b. supporting candidates who may not be the best choice for a position c. focusing only on group members' goals d. resorting to unethical tactics

Answers: 1

Answer

Advanced Placement (AP), 24.06.2019 08:00

The color contrast between the open ocean and the lagoon between the spit and the mainland. the greater concentration of suspended sediments in the lagoon gives the waters a more turbid appearance. the source of sediment in the lagoon is (are) [(rivers and streams from the mainland) (wind-borne sediment from the spit) (ocean waves washing over the spit) (all of these contribute)].

Answers: 1

Answer

Advanced Placement (AP), 26.06.2019 21:30

54 points human geography in advance

Answers: 1

Answer

You know the right answer?

In a certain region, many of the residents are employed by the oil industry. Economists in the regio...

Questions