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 160 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
Excellent

kthug

  • Member
  • Posts: 332
Reply 3 on: Yesterday
Wow, this really help

« previous next »
 

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?

The human body produces and destroys 15 million blood cells every second.

Did you know?

According to the American College of Allergy, Asthma & Immunology, more than 50 million Americans have some kind of food allergy. Food allergies affect between 4 and 6% of children, and 4% of adults, according to the CDC. The most common food allergies include shellfish, peanuts, walnuts, fish, eggs, milk, and soy.

Did you know?

Today, nearly 8 out of 10 pregnant women living with HIV (about 1.1 million), receive antiretrovirals.

Did you know?

Intradermal injections are somewhat difficult to correctly administer because the skin layers are so thin that it is easy to accidentally punch through to the deeper subcutaneous layer.

Urinometer. In this procedure, a urine sample and urinometer are placed within a tube, and the liqui Urinometer. In this procedure, a urine sample and urinometer are placed within a tube, and the liqui
Bell Curve for Intelligence IQ scores for a population-based sample usually fall into this kind of Bell Curve for Intelligence IQ scores for a population-based sample usually fall into this kind of
ABO and Rh grouping using gelatin centrifugation. The blood sample above is AB negative as indicated ... ABO and Rh grouping using gelatin centrifugation. The blood sample above is AB negative as indicated ...
Sample prescriptions of drugs for oral herpes infection. Sample prescriptions of drugs for oral herpes infection.
The population of Asia increases rapidly, the demand for food and water is also growing The population of Asia increases rapidly, the demand for food and water is also growing
Find a quadractic equation that models the data in standard form Find a quadractic equation that models the data in standard form
Video: Blood Flow through the Human Heart

For a complete list of videos, visit our video library