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 131 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
Gracias!

chjcharjto14

  • Member
  • Posts: 342
Reply 3 on: Yesterday
Wow, this really help

« previous next »
 

Did you know?

Despite claims by manufacturers, the supplement known as Ginkgo biloba was shown in a study of more than 3,000 participants to be ineffective in reducing development of dementia and Alzheimer’s disease in older people.

Did you know?

Disorders that may affect pharmacodynamics include genetic mutations, malnutrition, thyrotoxicosis, myasthenia gravis, Parkinson's disease, and certain forms of insulin-resistant diabetes mellitus.

Did you know?

The types of cancer that alpha interferons are used to treat include hairy cell leukemia, melanoma, follicular non-Hodgkin's lymphoma, and AIDS-related Kaposi's sarcoma.

Did you know?

One way to reduce acid reflux is to lose two or three pounds. Most people lose weight in the belly area first when they increase exercise, meaning that heartburn can be reduced quickly by this method.

Did you know?

Oxytocin is recommended only for pregnancies that have a medical reason for inducing labor (such as eclampsia) and is not recommended for elective procedures or for making the birthing process more convenient.

A comparison of the sizes of various chemical and biological structures, and the resolving power of A comparison of the sizes of various chemical and biological structures, and the resolving power of
A small sample of the great diversity of seed sizes and shapes. A small sample of the great diversity of seed sizes and shapes.
Normal portal circulation. Normal portal circulation.
An intake manifold gasket that failed and allowed coolant to be drawn into the cylinder(s). An intake manifold gasket that failed and allowed coolant to be drawn into the cylinder(s).
Red blood cells with normal hemoglobin, like the three similar ones, are smooth and round Red blood cells with normal hemoglobin, like the three similar ones, are smooth and round
Normal heart valves Normal heart valves
Video: Transmission Across a Synapse

For a complete list of videos, visit our video library