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

Author Question: Two samples of sizes 25 and 35 are independently drawn from two normal populations, where the ... (Read 161 times)

pepyto

  • Hero Member
  • *****
  • Posts: 547
on: Jun 24, 2018
Two samples of sizes 25 and 35 are independently drawn from two normal populations, where the unknown population variances are assumed to be equal. The number of degrees of freedom of the equal-variances t-test statistic is:
 a. 60.
  b. 59.
  c. 58.
  d. 35.

Question 2

A political analyst in Texas surveys a random sample of registered Democrats and compares the results with those obtained from a random sample of registered Republicans. This would be an example of:
 a. Independent samples.
  b. dependent samples.
  c. Independent samples only if the sample sizes are equal.
  d. Dependent samples only if the sample sizes are equal.


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

catron30

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

C

Answer to Question 2

A


pepyto

  • Member
  • Posts: 547
Reply 2 on: Jun 24, 2018
Excellent

TheDev123

  • Member
  • Posts: 332
Reply 3 on: Yesterday
Great answer, keep it coming :)

« previous next »
 

Did you know?

Green tea is able to stop the scent of garlic or onion from causing bad breath.

Did you know?

Adult head lice are gray, about ? inch long, and often have a tiny dot on their backs. A female can lay between 50 and 150 eggs within the several weeks that she is alive. They feed on human blood.

Did you know?

Side effects from substance abuse include nausea, dehydration, reduced productivitiy, and dependence. Though these effects usually worsen over time, the constant need for the substance often overcomes rational thinking.

Did you know?

The human body produces and destroys 15 million blood cells every second.

Did you know?

Certain chemicals, after ingestion, can be converted by the body into cyanide. Most of these chemicals have been removed from the market, but some old nail polish remover, solvents, and plastics manufacturing solutions can contain these substances.

Predators come in a diversity of shapes and sizes. Predators come in a diversity of shapes and sizes.
Herbivores of greatly different sizes can feed upon the same plant tissues. Though here we can see t Herbivores of greatly different sizes can feed upon the same plant tissues. Though here we can see t
Three standard sizes of cuffs: a small cuff for a child or frail adult; a normal-sized adult cuff; ... Three standard sizes of cuffs: a small cuff for a child or frail adult; a normal-sized adult cuff; ...
Normal red blood cells (round) and sickled red blood cells Normal red blood cells (round) and sickled red blood cells
Distribution of dystrophin in muscle cells. (a) In normal muscle cells, all the dystrophin is locate Distribution of dystrophin in muscle cells. (a) In normal muscle cells, all the dystrophin is locate
The traditional human karyotypes derived from a normal female and a normal male The traditional human karyotypes derived from a normal female and a normal male
Video: Exercise and cardiac output

For a complete list of videos, visit our video library