« previous next »

Author Question: To find a confidence interval for the difference between the means of independent samples, when the ... (Read 74 times)

saraeharris

  • Hero Member
  • *****
  • Posts: 546
on: Jun 24, 2018
To find a confidence interval for the difference between the means of independent samples, when the variances are unknown but assumed equal, the sample sizes of the two groups must be the same.
 
  Indicate whether the statement is true or false

Question 2

Which of the following is not a characteristic of the normal distribution?
 
  A) Symmetric
  B) Mean = median = mode
  C) Bell-shaped
  D) Equal probabilities at all values of x


Andromeda18

  • Sr. Member
  • ****
  • Posts: 336
Reply #1 on: Jun 24, 2018
Answer to Question 1

FALSE

Answer to Question 2

D


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
« previous next »
 

Did you know?

The toxic levels for lithium carbonate are close to the therapeutic levels. Signs of toxicity include fine hand tremor, polyuria, mild thirst, nausea, general discomfort, diarrhea, vomiting, drowsiness, muscular weakness, lack of coordination, ataxia, giddiness, tinnitus, and blurred vision.

Did you know?

According to the American College of Allergy, Asthma & Immunology, more than 50 million Americans have some kind of food allergy. Food allergies affect between 4 and 6% of children, and 4% of adults, according to the CDC. The most common food allergies include shellfish, peanuts, walnuts, fish, eggs, milk, and soy.

Did you know?

The immune system needs 9.5 hours of sleep in total darkness to recharge completely.

Did you know?

In the ancient and medieval periods, dysentery killed about ? of all babies before they reach 12 months of age. The disease was transferred through contaminated drinking water, because there was no way to adequately dispose of sewage, which contaminated the water.

Did you know?

Elderly adults are at greatest risk of stroke and myocardial infarction and have the most to gain from prophylaxis. Patients ages 60 to 80 years with blood pressures above 160/90 mm Hg should benefit from antihypertensive treatment.

How to find derivatives of trigonometric functions How to find derivatives of trigonometric functions
How to find the tangential and normal components of a vector How to find the tangential and normal components of a vector
How to use a tree diagram to find the probability How to use a tree diagram to find the probability
Find Δy + Δy/Δx, given: Find Δy + Δy/Δx, given:
Find all t1, t2, t3 ∈ R such that Find all t1, t2, t3 ∈ R such that
Difference between the house and the senate Difference between the house and the senate
Video: Introduction to Diabetes

For a complete list of videos, visit our video library