Author Question: Suppose an interval estimate for the population mean was 62.84 to 69.46 . The population standard ... (Read 82 times)

D2AR0N

  • Hero Member
  • *****
  • Posts: 561
Suppose an interval estimate for the population mean was 62.84 to 69.46 . The population standard deviation was assumed to be 6.50, and a sample of 100 observations was used. The mean of the sample was:
 a. 6.62
  b. 56.34
  c. 62.96
  d. 66.15

Question 2

A multiple regression model involves 10 independent variables and 30 observations. If we want to test at the 5 significance level whether one of the coefficients is = 0 (vs.  0) the critical value will be:
 a. 2.228 c. 1.729
  b. 2.093 d. 1.697



flannelavenger

  • Sr. Member
  • ****
  • Posts: 322
Answer to Question 1

D

Answer to Question 2

B



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
 

Did you know?

Drugs are in development that may cure asthma and hay fever once and for all. They target leukotrienes, which are known to cause tightening of the air passages in the lungs and increase mucus productions in nasal passages.

Did you know?

The U.S. Preventive Services Task Force recommends that all women age 65 years of age or older should be screened with bone densitometry.

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?

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.

Did you know?

Chronic necrotizing aspergillosis has a slowly progressive process that, unlike invasive aspergillosis, does not spread to other organ systems or the blood vessels. It most often affects middle-aged and elderly individuals, spreading to surrounding tissue in the lungs. The disease often does not respond to conventionally successful treatments, and requires individualized therapies in order to keep it from becoming life-threatening.

For a complete list of videos, visit our video library