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 251 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
:D TYSM

bulacsom

  • Member
  • Posts: 329
Reply 3 on: Yesterday
Thanks for the timely response, appreciate it

« previous next »
 

Did you know?

In inpatient settings, adverse drug events account for an estimated one in three of all hospital adverse events. They affect approximately 2 million hospital stays every year, and prolong hospital stays by between one and five days.

Did you know?

Your heart beats over 36 million times a year.

Did you know?

The average human gut is home to perhaps 500 to 1,000 different species of bacteria.

Did you know?

As the western states of America were settled, pioneers often had to drink rancid water from ponds and other sources. This often resulted in chronic diarrhea, causing many cases of dehydration and death that could have been avoided if clean water had been available.

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.

The meninges. This figure illustrates the location and structure of each layer of the meninges and t The meninges. This figure illustrates the location and structure of each layer of the meninges and t
Relationship of the electrocardiogram to electrical conduction in the heart Relationship of the electrocardiogram to electrical conduction in the heart
Studying the Axon Studying the Axon
The relationship of substrate con- version (as measured by optical density) to the amount of patient ... The relationship of substrate con- version (as measured by optical density) to the amount of patient ...
Relationship between Income Inequality and Sociopolitical Instability Relationship between Income Inequality and Sociopolitical Instability
I am studying better at night I am studying better at night
Video: A timeline of the teeth (Explained - No Audio)

For a complete list of videos, visit our video library