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

Author Question: The z test for independent groups is seldom used because _________. a. it lacks sensitivity b. ... (Read 49 times)

Redwolflake15

  • Hero Member
  • *****
  • Posts: 569
on: Jun 19, 2018
The z test for independent groups is seldom used because _________.
 
  a. it lacks sensitivity
  b. it is too complicated
  c. we seldom know the population variances
  d. the sampling distribution of z under H0 is unknown

Question 2

Having just made what you feel is to be a Type II error, using an independent groups design and a t test analysis, which of the following might you do in the next experiment to reduce the probability of a Type II error?
 
  a. increase N
  b. change to a correlated groups design
  c. try to reduce the variance by better experimental control
  d. all of these


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

heinisk01

  • Sr. Member
  • ****
  • Posts: 329
Reply #1 on: Jun 19, 2018
Answer to Question 1

C

Answer to Question 2

D


Redwolflake15

  • Member
  • Posts: 569
Reply 2 on: Jun 19, 2018
Excellent

miss.ashley

  • Member
  • Posts: 371
Reply 3 on: Yesterday
YES! Correct, THANKS for helping me on my review

« previous next »
 

Did you know?

Acetaminophen (Tylenol) in overdose can seriously damage the liver. It should never be taken by people who use alcohol heavily; it can result in severe liver damage and even a condition requiring a liver transplant.

Did you know?

Vaccines cause herd immunity. If the majority of people in a community have been vaccinated against a disease, an unvaccinated person is less likely to get the disease since others are less likely to become sick from it and spread the disease.

Did you know?

There are actually 60 minerals, 16 vitamins, 12 essential amino acids, and three essential fatty acids that your body needs every day.

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?

All adults should have their cholesterol levels checked once every 5 years. During 2009–2010, 69.4% of Americans age 20 and older reported having their cholesterol checked within the last five years.

Anterior Drawer Test of the Ankle Anterior Drawer Test of the Ankle
Weber test: Place the base of the tuning fork on top of the client’s head. Weber test: Place the base of the tuning fork on top of the client’s head.
Mendel’s law of independent assortment. Mendel’s law of independent assortment.
The Punnett square of a dihybrid cross demonstrates Mendel’s law of independent assortment. The Punnett square of a dihybrid cross demonstrates Mendel’s law of independent assortment.
Performing a Spirometry Test to Measure Forced Vital Capacity Performing a Spirometry Test to Measure Forced Vital Capacity
The experimental design and results of Lester and Gorzalka (1988). On the third test, the female ... The experimental design and results of Lester and Gorzalka (1988). On the third test, the female ...
Video: Parkinson's Disease

For a complete list of videos, visit our video library