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

Author Question: In testing the difference between two population means for which the population variances are ... (Read 139 times)

awywial

  • Hero Member
  • *****
  • Posts: 577
on: Jun 24, 2018
In testing the difference between two population means for which the population variances are unknown and not assumed to be equal, two independent samples are drawn from the populations. Which of the following tests is appropriate?
 a. z-test c. unequal variances t-test
  b. pooled-variances t-test d. None of these choices.

Question 2

We calculate the three-period moving average for a time series for all time periods except the first period.
  Indicate whether the statement is true or false


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

Benayers

  • Sr. Member
  • ****
  • Posts: 328
Reply #1 on: Jun 24, 2018
Answer to Question 1

C

Answer to Question 2

F


awywial

  • Member
  • Posts: 577
Reply 2 on: Jun 24, 2018
Gracias!

hramirez205

  • Member
  • Posts: 345
Reply 3 on: Yesterday
Wow, this really help

« previous next »
 

Did you know?

According to the FDA, adverse drug events harmed or killed approximately 1,200,000 people in the United States in the year 2015.

Did you know?

Approximately 70% of expectant mothers report experiencing some symptoms of morning sickness during the first trimester of pregnancy.

Did you know?

To combat osteoporosis, changes in lifestyle and diet are recommended. At-risk patients should include 1,200 to 1,500 mg of calcium daily either via dietary means or with supplements.

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?

The Centers for Disease Control and Prevention has released reports detailing the deaths of infants (younger than 1 year of age) who died after being given cold and cough medications. This underscores the importance of educating parents that children younger than 2 years of age should never be given over-the-counter cold and cough medications without consulting their physicians.

The difference between AZT-sensitive versus AZT-resistant reverse transcriptases The difference between AZT-sensitive versus AZT-resistant reverse transcriptases
Predators and Population Cycles Predators and Population Cycles
World Population Growth World Population Growth
Population and Settlement Population and Settlement
Population growth and growth rate, 1950 - 2100 Population growth and growth rate, 1950 - 2100
Population of California poppy plants Population of California poppy plants
Video: Integumentary Anatomy

For a complete list of videos, visit our video library