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

Author Question: If a real-world problem is correctly formulated, it is not possible to have alternative optimal ... (Read 123 times)

ss2343

  • Hero Member
  • *****
  • Posts: 548
on: Jun 24, 2018
If a real-world problem is correctly formulated, it is not possible to have alternative optimal solutions.
  Indicate whether the statement is true or false

Question 2

D size batteries produced by MNM Corporation have had a life expectancy of 87 hours. Because of an improved production process, the company believes that there has been an INCREASE in the life expectancy of its D size batteries. A sample of 36 batteries showed an average life of 88.5 hours. Assume from past information that it is known that the standard deviation of the population is 9 hours.
 a. Use a .01 level of significance, and test to determine if there has been an increase in the life expectancy of the D size batteries.
 b. What is the p-value associated with the sample results? What is your conclusion, based on the p-value?


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

Qarqy

  • Sr. Member
  • ****
  • Posts: 313
Reply #1 on: Jun 24, 2018
Answer to Question 1

F

Answer to Question 2

a. H0:   87
Ha:  > 87 z = 1; therefore do not reject H0 . There is not sufficient evidence at  = .01 to conclude that there has been an increase in the life expectancy in the D size batteries.
b. p-value = 0.1587; therefore, do not reject H0 (same conclusion as part a)


ss2343

  • Hero Member
  • *****
  • Posts: 548
Reply #2 on: Jun 24, 2018
Thank you


Qarqy

  • Sr. Member
  • ****
  • Posts: 313
Reply #3 on: Jun 24, 2018
No problemo


« previous next »
 

Did you know?

A strange skin disease referred to as Morgellons has occurred in the southern United States and in California. Symptoms include slowly healing sores, joint pain, persistent fatigue, and a sensation of things crawling through the skin. Another symptom is strange-looking, threadlike extrusions coming out of the skin.

Did you know?

The liver is the only organ that has the ability to regenerate itself after certain types of damage. As much as 25% of the liver can be removed, and it will still regenerate back to its original shape and size. However, the liver cannot regenerate after severe damage caused by alcohol.

Did you know?

Prostaglandins were first isolated from human semen in Sweden in the 1930s. They were so named because the researcher thought that they came from the prostate gland. In fact, prostaglandins exist and are synthesized in almost every cell of the body.

Did you know?

Giardia is one of the most common intestinal parasites worldwide, and infects up to 20% of the world population, mostly in poorer countries with inadequate sanitation. Infections are most common in children, though chronic Giardia is more common in adults.

Did you know?

It is important to read food labels and choose foods with low cholesterol and saturated trans fat. You should limit saturated fat to no higher than 6% of daily calories.

Cognitive behaviour involves problem-solving ability. Cognitive behaviour involves problem-solving ability.
Paleogene world Paleogene world
Becker's World of the Cell Becker's World of the Cell
Sequence Series Arithmatic Progression Problem Sequence Series Arithmatic Progression Problem
Sequence Series Arithmatic Progression Problem Sequence Series Arithmatic Progression Problem
Penicillin saved the lives of many soldiers in World War II Penicillin saved the lives of many soldiers in World War II
Video: Introduction to Herpes

For a complete list of videos, visit our video library