Author Question: Find the probability that X is greater than 36 and less than 60. What will be an ideal ... (Read 100 times)

anshika

  • Hero Member
  • *****
  • Posts: 510
Find the probability that X is greater than 36 and less than 60.
 
  What will be an ideal response?

Question 2

Based on the 95 confidence interval, can one conclude that there is a difference in the true average functioning time between the two models of battery packs before recharging? Justify your answer.
 
  What will be an ideal response?



irishcancer18

  • Sr. Member
  • ****
  • Posts: 310
Answer to Question 1

P(36 < X < 60 ) = P(-1.54 < Z < 1.54 ) = 0.4382 + 0.4382 = 0.8764

Answer to Question 2

Since zero is within the limits of the confidence interval, it is possible that the means are the same. Therefore one cannot conclude there is a difference in average functioning time between the two models of battery packs before recharging.



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question


 

Did you know?

Medication errors are more common among seriously ill patients than with those with minor conditions.

Did you know?

Complications of influenza include: bacterial pneumonia, ear and sinus infections, dehydration, and worsening of chronic conditions such as asthma, congestive heart failure, or diabetes.

Did you know?

Chronic necrotizing aspergillosis has a slowly progressive process that, unlike invasive aspergillosis, does not spread to other organ systems or the blood vessels. It most often affects middle-aged and elderly individuals, spreading to surrounding tissue in the lungs. The disease often does not respond to conventionally successful treatments, and requires individualized therapies in order to keep it from becoming life-threatening.

Did you know?

When blood is exposed to air, it clots. Heparin allows the blood to come in direct contact with air without clotting.

Did you know?

Cocaine was isolated in 1860 and first used as a local anesthetic in 1884. Its first clinical use was by Sigmund Freud to wean a patient from morphine addiction. The fictional character Sherlock Holmes was supposed to be addicted to cocaine by injection.

For a complete list of videos, visit our video library