Author Question: In testing the difference between the means of two normal populations using two independent samples ... (Read 90 times)

beccaep

  • Hero Member
  • *****
  • Posts: 535
In testing the difference between the means of two normal populations using two independent samples when the population variances are unequal, the sampling distribution of the resulting statistic is:
 a. normal. c. approximately normal.
  b. Student-t. d. approximately Student-t.

Question 2

To calculate the five-period moving average for a time series, we average the value in that time period, the values in the two preceding time periods, and the values in the two following time periods.
  Indicate whether the statement is true or false



patma1981

  • Sr. Member
  • ****
  • Posts: 292
Answer to Question 1

D

Answer to Question 2

T



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
 

Did you know?

Patients who have been on total parenteral nutrition for more than a few days may need to have foods gradually reintroduced to give the digestive tract time to start working again.

Did you know?

The toxic levels for lithium carbonate are close to the therapeutic levels. Signs of toxicity include fine hand tremor, polyuria, mild thirst, nausea, general discomfort, diarrhea, vomiting, drowsiness, muscular weakness, lack of coordination, ataxia, giddiness, tinnitus, and blurred vision.

Did you know?

To prove that stomach ulcers were caused by bacteria and not by stress, a researcher consumed an entire laboratory beaker full of bacterial culture. After this, he did indeed develop stomach ulcers, and won the Nobel Prize for his discovery.

Did you know?

According to the Migraine Research Foundation, migraines are the third most prevalent illness in the world. Women are most affected (18%), followed by children of both sexes (10%), and men (6%).

Did you know?

The FDA recognizes 118 routes of administration.

For a complete list of videos, visit our video library