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

Author Question: Two independent samples of sizes 25 and 35 are randomly selected from two normal populations with ... (Read 107 times)

mp14

  • Hero Member
  • *****
  • Posts: 534
on: Jun 24, 2018
Two independent samples of sizes 25 and 35 are randomly selected from two normal populations with equal variances (assumed to be unknown). In order to test the difference between the population means, the test statistic is:
 a. a standard normal random variable.
  b. approximately standard normal random variable.
  c. Student t-distributed with 58 degrees of freedom.
  d. Student t-distributed with 33 degrees of freedom.

Question 2

The time series component that reflects a long-term, relatively smooth pattern or direction exhibited by a time series over a long time period is called seasonal.
  Indicate whether the statement is true or false


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

lgoldst9

  • Sr. Member
  • ****
  • Posts: 372
Reply #1 on: Jun 24, 2018
Answer to Question 1

C

Answer to Question 2

F


mp14

  • Hero Member
  • *****
  • Posts: 534
Reply #2 on: Jun 24, 2018
Thank you :)


lgoldst9

  • Sr. Member
  • ****
  • Posts: 372
Reply #3 on: Jun 24, 2018
Happy to help you


« previous next »
 

Did you know?

Inotropic therapy does not have a role in the treatment of most heart failure patients. These drugs can make patients feel and function better but usually do not lengthen the predicted length of their lives.

Did you know?

Human stomach acid is strong enough to dissolve small pieces of metal such as razor blades or staples.

Did you know?

Of the estimated 2 million heroin users in the United States, 600,000–800,000 are considered hardcore addicts. Heroin addiction is considered to be one of the hardest addictions to recover from.

Did you know?

Signs and symptoms that may signify an eye tumor include general blurred vision, bulging eye(s), double vision, a sensation of a foreign body in the eye(s), iris defects, limited ability to move the eyelid(s), limited ability to move the eye(s), pain or discomfort in or around the eyes or eyelids, red or pink eyes, white or cloud spots on the eye(s), colored spots on the eyelid(s), swelling around the eyes, swollen eyelid(s), and general vision loss.

Did you know?

Patients who cannot swallow may receive nutrition via a parenteral route—usually, a catheter is inserted through the chest into a large vein going into the heart.

Relative sizes of the sporophyte and gametophyte generations of bryophytes, ferns, and seed plants. Relative sizes of the sporophyte and gametophyte generations of bryophytes, ferns, and seed plants.
Muskox populations remain in the Arctic all year, though they migrate to higher elevations in the wi Muskox populations remain in the Arctic all year, though they migrate to higher elevations in the wi
Normal red blood cells. Normal red blood cells.
EEG recordings showing the differences between normal, absence seizure, and generalized tonic–clonic EEG recordings showing the differences between normal, absence seizure, and generalized tonic–clonic
Selected Topical Corticosteroids for Dermatitis and Related Symptoms Selected Topical Corticosteroids for Dermatitis and Related Symptoms
The time at which the mailman delivers the mail to Ace Bike Shop follows a normal distribution ... The time at which the mailman delivers the mail to Ace Bike Shop follows a normal distribution ...
Video: Cleavage and Implantation Animation

For a complete list of videos, visit our video library