This topic contains a solution. Click here to go to the answer
« previous next »

Author Question: If we change a 95 confidence interval estimate to a 99 confidence interval estimate, we can expect ... (Read 161 times)

robinn137

  • Hero Member
  • *****
  • Posts: 544
on: Jun 24, 2018
If we change a 95 confidence interval estimate to a 99 confidence interval estimate, we can expect the _____.
 a. width of the confidence interval to increase
  b. width of the confidence interval to decrease
  c. width of the confidence interval to remain the same
  d. sample size to increase

Question 2

The life expectancy of a particular brand of tire is normally distributed with a mean of 40,000 and a standard deviation of 5,000 miles. What is the random variable in this experiment?
 a. Life expectancy of this brand of tire
  b. Normal distribution
  c. 40,000 miles
  d. None of the answers is correct.


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

cassie_ragen

  • Sr. Member
  • ****
  • Posts: 347
Reply #1 on: Jun 24, 2018
Answer to Question 1

a

Answer to Question 2

a


robinn137

  • Member
  • Posts: 544
Reply 2 on: Jun 24, 2018
YES! Correct, THANKS for helping me on my review

chjcharjto14

  • Member
  • Posts: 342
Reply 3 on: Yesterday
Excellent

« previous next »
 

Did you know?

When Gabriel Fahrenheit invented the first mercury thermometer, he called "zero degrees" the lowest temperature he was able to attain with a mixture of ice and salt. For the upper point of his scale, he used 96°, which he measured as normal human body temperature (we know it to be 98.6° today because of more accurate thermometers).

Did you know?

Acute bronchitis is an inflammation of the breathing tubes (bronchi), which causes increased mucus production and other changes. It is usually caused by bacteria or viruses, can be serious in people who have pulmonary or cardiac diseases, and can lead to pneumonia.

Did you know?

Fungal nail infections account for up to 30% of all skin infections. They affect 5% of the general population—mostly people over the age of 70.

Did you know?

It is believed that humans initially contracted crabs from gorillas about 3 million years ago from either sleeping in gorilla nests or eating the apes.

Did you know?

According to the National Institute of Environmental Health Sciences, lung disease is the third leading killer in the United States, responsible for one in seven deaths. It is the leading cause of death among infants under the age of one year.

School-age children are often independent and industrious, with a developing sense of self-confidenc School-age children are often independent and industrious, with a developing sense of self-confidenc
Barriers to change Barriers to change
Ancient Climate Change: Following the Cretaceous Ancient Climate Change: Following the Cretaceous
Climate Change: Greenhouse gases Timescale Climate Change: Greenhouse gases Timescale
The roots of climate change The roots of climate change
Consistency and Change in Personality Over the Lifespan Consistency and Change in Personality Over the Lifespan
Video: Primate Evolutionary Tree Animation

For a complete list of videos, visit our video library