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

Author Question: A population has a mean of 84 and a standard deviation of 12 . A sample of 36 observations will be ... (Read 176 times)

HCHenry

  • Hero Member
  • *****
  • Posts: 591
on: Jun 24, 2018
A population has a mean of 84 and a standard deviation of 12 . A sample of 36 observations will be taken. The probability that the sample mean will be between 80.54 and 88.9 is _____.
 a. .0347
  b. .7200
  c. .9511
  d. None of the answers is correct.

Question 2

During lunchtime, customers arrive at Bob's Drugs according to a Poisson distribution with  = 4 per minute. During a one-minute interval, determine the following probabilities:
 a. no arrivals; b. 1 arrival; c. 2 arrivals; and, d. 3 or more arrivals.
  e. What is the probability of 2 arrivals in a two-minute period?


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

kusterl

  • Sr. Member
  • ****
  • Posts: 315
Reply #1 on: Jun 24, 2018
Answer to Question 1

c

Answer to Question 2

a. .0183
b. .0733
c. .1465
d. .7619
e. .0107


HCHenry

  • Member
  • Posts: 591
Reply 2 on: Jun 24, 2018
YES! Correct, THANKS for helping me on my review

TheDev123

  • Member
  • Posts: 332
Reply 3 on: Yesterday
Excellent

« previous next »
 

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?

The familiar sounds of your heart are made by the heart's valves as they open and close.

Did you know?

About 3.2 billion people, nearly half the world population, are at risk for malaria. In 2015, there are about 214 million malaria cases and an estimated 438,000 malaria deaths.

Did you know?

There are 20 feet of blood vessels in each square inch of human skin.

Did you know?

A serious new warning has been established for pregnant women against taking ACE inhibitors during pregnancy. In the study, the risk of major birth defects in children whose mothers took ACE inhibitors during the first trimester was nearly three times higher than in children whose mothers didn't take ACE inhibitors. Physicians can prescribe alternative medications for pregnant women who have symptoms of high blood pressure.

Feral Jackson's Chameleon from a population introduced to Hawaii in the 1970s Feral Jackson's Chameleon from a population introduced to Hawaii in the 1970s
Male Turkmen in the wealthier half of the population had higher fertility rates than those in the po Male Turkmen in the wealthier half of the population had higher fertility rates than those in the po
Sample Exercise Program for Limited Older Adults Sample Exercise Program for Limited Older Adults
Sample prescriptions of antibiotics for dental infections. Sample prescriptions of antibiotics for dental infections.
Sample prescriptions of drugs for oral fungal infections. Sample prescriptions of drugs for oral fungal infections.
Relationship Between Income per Capita and Population Growth Relationship Between Income per Capita and Population Growth
Video: Ear Animation

For a complete list of videos, visit our video library