« previous next »

Author Question: Suppose an interval estimate for the population mean was 62.84 to 69.46 . The population standard ... (Read 67 times)

D2AR0N

  • Hero Member
  • *****
  • Posts: 561
on: Jun 24, 2018
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
Reply #1 on: Jun 24, 2018
Answer to Question 1

D

Answer to Question 2

B


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
« previous next »
 

Did you know?

About 3% of all pregnant women will give birth to twins, which is an increase in rate of nearly 60% since the early 1980s.

Did you know?

More than nineteen million Americans carry the factor V gene that causes blood clots, pulmonary embolism, and heart disease.

Did you know?

The most destructive flu epidemic of all times in recorded history occurred in 1918, with approximately 20 million deaths worldwide.

Did you know?

Medications that are definitely not safe to take when breastfeeding include radioactive drugs, antimetabolites, some cancer (chemotherapy) agents, bromocriptine, ergotamine, methotrexate, and cyclosporine.

Did you know?

Though methadone is often used to treat dependency on other opioids, the drug itself can be abused. Crushing or snorting methadone can achieve the opiate "rush" desired by addicts. Improper use such as these can lead to a dangerous dependency on methadone. This drug now accounts for nearly one-third of opioid-related deaths.

The Dugong is an endangered species; the largest remaining population is found in Australian waters The Dugong is an endangered species; the largest remaining population is found in Australian waters
Risk of death from motorcycle accidents (dashed lines) and passenger accidents (solid lines) per 100 Risk of death from motorcycle accidents (dashed lines) and passenger accidents (solid lines) per 100
Standard Precautions for the Care of all Patients in All Health Care Settings Standard Precautions for the Care of all Patients in All Health Care Settings
Population and Settlement Population and Settlement
World population density World population density
population pyramid of Croatia population pyramid of Croatia
Video: Atrial natriuretic peptide (vasodilation) & Aldosterone

For a complete list of videos, visit our video library