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

Author Question: Which of the following is LEAST useful in studying the relationship between two variables? a. ... (Read 253 times)

Jkov05

  • Hero Member
  • *****
  • Posts: 556
on: Jun 24, 2018
Which of the following is LEAST useful in studying the relationship between two variables?
 a. trendline
  b. stem-and-leaf display
  c. crosstabulation
  d. scatter diagram

Question 2

The average weekly earnings of bus drivers in a city are 950 (that is ) with a standard deviation of 45 (that is ). Assume that we select a random sample of 81 bus drivers.
 a. Compute the standard error of the mean.
  b. What is the probability that the sample mean will be greater than 960?
  c. If the population of bus drivers consisted of 400 drivers, what would be the standard error of the mean?


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

jjorrostieta

  • Sr. Member
  • ****
  • Posts: 298
Reply #1 on: Jun 24, 2018
Answer to Question 1

b

Answer to Question 2

a. 5
b. 0.0228
c. 4.47


Jkov05

  • Member
  • Posts: 556
Reply 2 on: Jun 24, 2018
Great answer, keep it coming :)

kthug

  • Member
  • Posts: 332
Reply 3 on: Yesterday
:D TYSM

« previous next »
 

Did you know?

In the ancient and medieval periods, dysentery killed about ? of all babies before they reach 12 months of age. The disease was transferred through contaminated drinking water, because there was no way to adequately dispose of sewage, which contaminated the water.

Did you know?

Colchicine is a highly poisonous alkaloid originally extracted from a type of saffron plant that is used mainly to treat gout.

Did you know?

Lower drug doses for elderly patients should be used first, with titrations of the dose as tolerated to prevent unwanted drug-related pharmacodynamic effects.

Did you know?

The first oncogene was discovered in 1970 and was termed SRC (pronounced "SARK").

Did you know?

Human neurons are so small that they require a microscope in order to be seen. However, some neurons can be up to 3 feet long, such as those that extend from the spinal cord to the toes.

Studying the Canopy Studying the Canopy
Relationship of the electrocardiogram to electrical conduction in the heart Relationship of the electrocardiogram to electrical conduction in the heart
5-4 The relationship between vapor pressure and temperature—in this case for water. As the ... 5-4 The relationship between vapor pressure and temperature—in this case for water. As the ...
A relationship between folate and B12 metabolism A relationship between folate and B12 metabolism
What is the contribution of studying wing spot in the field? What is the contribution of studying wing spot in the field?
The lifetime risk for schizophrenia varies with the degree of relationship to an affected individual The lifetime risk for schizophrenia varies with the degree of relationship to an affected individual
Video: Proteins

For a complete list of videos, visit our video library