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 281 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
Thanks for the timely response, appreciate it

nanny

  • Member
  • Posts: 313
Reply 3 on: Yesterday
Wow, this really help

« previous next »
 

Did you know?

Hippocrates noted that blood separates into four differently colored liquids when removed from the body and examined: a pure red liquid mixed with white liquid material with a yellow-colored froth at the top and a black substance that settles underneath; he named these the four humors (for blood, phlegm, yellow bile, and black bile).

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.

Did you know?

Medications that are definitely not safe to take when breastfeeding include radioactive drugs, antimetabolites, some cancer (chemotherapy) agents, bromocriptine, ergotamine, methotrexate, and cyclosporine.

Did you know?

No drugs are available to relieve parathyroid disease. Parathyroid disease is caused by a parathyroid tumor, and it needs to be removed by surgery.

Did you know?

Many medications that are used to treat infertility are injected subcutaneously. This is easy to do using the anterior abdomen as the site of injection but avoiding the area directly around the belly button.

The Relationship Between Religion and Spirituality The Relationship Between Religion and Spirituality
Relationship of the electrocardiogram to electrical conduction in the heart Relationship of the electrocardiogram to electrical conduction in the heart
The overlapping relationship among research, evidence-based practice The overlapping relationship among research, evidence-based practice
The Circle of Relationship Issues and Sexual Problems The Circle of Relationship Issues and Sexual Problems
Relationship between Latitude and Income per Capita Relationship between Latitude and Income per Capita
The pH scale and relationship between bicarbonate and carbonic acid The pH scale and relationship between bicarbonate and carbonic acid
Video: Bone Growth and Remodeling

For a complete list of videos, visit our video library