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

Author Question: Random samples of size 49 are taken from a population that has 200 elements, a mean of 180, and a ... (Read 127 times)

londonang

  • Hero Member
  • *****
  • Posts: 540
on: Jun 24, 2018
Random samples of size 49 are taken from a population that has 200 elements, a mean of 180, and a variance of 196 . The distribution of the population is unknown. The mean and the standard error of the distribution of sample means are _____.
 a. 180 and 24.39
  b. 180 and 28
  c. 180 and 1.74
  d. 180 and 2

Question 2

John parks cars at a hotel. On average, 6.7 cars will arrive in an hour. Assume a driver's decision on whether to let John park the car does not depend upon any other person's decision. Define the random variable x to be the number of cars arriving in any hour period.
 a. What is the appropriate probability distribution for x? Explain how x satisfies the properties of the distribution.
  b. Compute the probability that exactly 5 cars will arrive in the next hour.
  c. Compute the probability that no more than 5 cars will arrive in the next hour.


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

Dnite

  • Sr. Member
  • ****
  • Posts: 297
Reply #1 on: Jun 24, 2018
Answer to Question 1

c

Answer to Question 2

a. Poisson
b. .1385
c. .3406


londonang

  • Member
  • Posts: 540
Reply 2 on: Jun 24, 2018
YES! Correct, THANKS for helping me on my review

Zebsrer

  • Member
  • Posts: 284
Reply 3 on: Yesterday
Excellent

« previous next »
 

Did you know?

The most common treatment options for addiction include psychotherapy, support groups, and individual counseling.

Did you know?

In ancient Rome, many of the richer people in the population had lead-induced gout. The reason for this is unclear. Lead poisoning has also been linked to madness.

Did you know?

The Romans did not use numerals to indicate fractions but instead used words to indicate parts of a whole.

Did you know?

Walt Disney helped combat malaria by making an animated film in 1943 called The Winged Scourge. This short film starred the seven dwarfs and taught children that mosquitos transmit malaria, which is a very bad disease. It advocated the killing of mosquitos to stop the disease.

Did you know?

Bisphosphonates were first developed in the nineteenth century. They were first investigated for use in disorders of bone metabolism in the 1960s. They are now used clinically for the treatment of osteoporosis, Paget's disease, bone metastasis, multiple myeloma, and other conditions that feature bone fragility.

Exponential growth in the Canadian migratory population of the whooping crane after 70 years of cons Exponential growth in the Canadian migratory population of the whooping crane after 70 years of cons
Fossil Size Fossil Size
Projections of the Racial-Ethnic Makeup of the U.S. Population Projections of the Racial-Ethnic Makeup of the U.S. Population
The Solow Model Incorporating Population Growth The Solow Model Incorporating Population Growth
Major Elements of the Genitourinary System Major Elements of the Genitourinary System
One generation of random mating produces Hardy–Weinberg equilibrium One generation of random mating produces Hardy–Weinberg equilibrium
Video: Burn Animation

For a complete list of videos, visit our video library