This topic contains a solution. Click here to go to the answer

Author Question: A student scores 62 on a geography test and 261 on a mathematics test. The geography test has a mean ... (Read 153 times)

DyllonKazuo

  • Hero Member
  • *****
  • Posts: 565
A student scores 62 on a geography test and 261 on a mathematics test. The geography test has a mean of 80 and a standard deviation of 15. The mathematics test has a mean of 300 and a standard deviation of 26.
 
  If the data for both tests are normally distributed, on which test did the student score better relative to the other students in each class? A) The student scored better on the geography test.
  B) The student scored better on the mathematics test.
  C) The student scored the same on both tests.

Question 2

To help consumers assess the risks they are taking, the Food and Drug Administration (FDA ) publishes the amount of nicotine found in all commercial brands of cigarettes. A new cigarette has recently been marketed.
 
  The FDA tests on this cigarette gave a mean nicotine content of 28.5 milligrams and standard deviation of 2.2 milligrams for a sample of n = 9 cigarettes. The FDA claims that the mean nicotine content exceeds 31.2 milligrams for this brand of cigarette, and their stated reliability is 95. Do you agree? A) No, since the value 31.2 does not fall in the 95 confidence interval.
  B) Yes, since the value 31.2 does fall in the 95 confidence interval.
  C) Yes, since the value 31.2 does not fall in the 95 confidence interval.
  D) No, since the value 31.2 does fall in the 95 confidence interval.



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

carlsona147

  • Sr. Member
  • ****
  • Posts: 341
Answer to Question 1

A

Answer to Question 2

A




DyllonKazuo

  • Member
  • Posts: 565
Reply 2 on: Jul 24, 2018
Gracias!


dyrone

  • Member
  • Posts: 322
Reply 3 on: Yesterday
YES! Correct, THANKS for helping me on my review

 

Did you know?

During the twentieth century, a variant of the metric system was used in Russia and France in which the base unit of mass was the tonne. Instead of kilograms, this system used millitonnes (mt).

Did you know?

More than 150,000 Americans killed by cardiovascular disease are younger than the age of 65 years.

Did you know?

The first documented use of surgical anesthesia in the United States was in Connecticut in 1844.

Did you know?

Astigmatism is the most common vision problem. It may accompany nearsightedness or farsightedness. It is usually caused by an irregularly shaped cornea, but sometimes it is the result of an irregularly shaped lens. Either type can be corrected by eyeglasses, contact lenses, or refractive surgery.

Did you know?

The eye muscles are the most active muscles in the whole body. The external muscles that move the eyes are the strongest muscles in the human body for the job they have to do. They are 100 times more powerful than they need to be.

For a complete list of videos, visit our video library