« previous next »

Author Question: If a researcher wants to improve the precision of a statistic by one decimal point, the sample size ... (Read 68 times)

brutforce

  • Hero Member
  • *****
  • Posts: 540
on: Jun 29, 2018
If a researcher wants to improve the precision of a statistic by one decimal point, the sample size would have to increase by _______________ times.
 a. five c. 100
  b. ten d. 1,000

Question 2

Combining the data from adjacent categories of a Likert-scale item is a common form of data transformation.
 
 Indicate whether the statement is true or false


mjbamaung

  • Sr. Member
  • ****
  • Posts: 343
Reply #1 on: Jun 29, 2018
Answer to Question 1

C
Sample size increases with the square of the precision.

Answer to Question 2

T


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
« previous next »
 

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?

Patients who cannot swallow may receive nutrition via a parenteral route—usually, a catheter is inserted through the chest into a large vein going into the heart.

Did you know?

The use of salicylates dates back 2,500 years to Hippocrates's recommendation of willow bark (from which a salicylate is derived) as an aid to the pains of childbirth. However, overdosage of salicylates can harm body fluids, electrolytes, the CNS, the GI tract, the ears, the lungs, the blood, the liver, and the kidneys and cause coma or death.

Did you know?

Pink eye is a term that refers to conjunctivitis, which is inflammation of the thin, clear membrane (conjunctiva) over the white part of the eye (sclera). It may be triggered by a virus, bacteria, or foreign body in the eye. Antibiotic eye drops alleviate bacterial conjunctivitis, and antihistamine allergy pills or eye drops help control allergic conjunctivitis symptoms.

Did you know?

There used to be a metric calendar, as well as metric clocks. The metric calendar, or "French Republican Calendar" divided the year into 12 months, but each month was divided into three 10-day weeks. Each day had 10 decimal hours. Each hour had 100 decimal minutes. Due to lack of popularity, the metric clocks and calendars were ended in 1795, three years after they had been first marketed.

Sexual dimorphism in body size and mating system. Sexual dimorphism in body size and mating system.
Estimating cicada population size and predation rates by birds. Estimating cicada population size and predation rates by birds.
Sandia ear-plug-sized samplers hang poised to sample gases relevant to climate and weather. Sandia ear-plug-sized samplers hang poised to sample gases relevant to climate and weather.
Sun size comparison Sun size comparison
Point Sources of Pollution Point Sources of Pollution
Banana Size vs. Calories Banana Size vs. Calories
Video: Phases of an Action Potential - Resting Potential, Threshold, Rising, Falling, & Recovery Phases

For a complete list of videos, visit our video library