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

Author Question: Summary statistics are given for independent simple random samples from two populations. Preliminary ... (Read 103 times)

NClaborn

  • Hero Member
  • *****
  • Posts: 560
on: Apr 7, 2020
Summary statistics are given for independent simple random samples from two populations. Preliminary data analyses indicate that the variable under consideration is normally distributed on each population. Decide whether use of the pooled t-test and pooled t-interval procedure is reasonable.  Explain your answer.

1 = 143.9, s1 = 13.2, n1 = 7, 2 = 212.9, s2 = 43.7, n2 = 17
◦ Reasonable; the sample standard deviations suggest that the two population standard deviations differ, however since the sample sizes are roughly equal, it is reasonable to use the pooled t-test.
◦ Reasonable; the sample standard deviations suggest that the two population standard deviations are equal.
◦ Not reasonable; the sample standard deviations suggest that the two population standard deviations are equal, however since the sample sizes are not roughly equal, it is not reasonable to use the pooled t-test.
◦ Not reasonable; the sample standard deviations suggest that the two population standard deviations differ and the sample sizes are not roughly equal.
Introductory Statistics ¦ Weiss ¦ 10th Edition
Buy Test-Bank


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by NClaborn on Apr 7, 2020

Cnarkel

  • Sr. Member
  • ****
  • Posts: 339
Reply #1 on: Apr 7, 2020
Lorsum iprem. Lorsus sur ipci. Lorsem sur iprem. Lorsum sur ipdi, lorsem sur ipci. Lorsum sur iprium, valum sur ipci et, vala sur ipci. Lorsem sur ipci, lorsa sur iprem. Valus sur ipdi. Lorsus sur iprium nunc, valem sur iprium. Valem sur ipdi. Lorsa sur iprium. Lorsum sur iprium. Valem sur ipdi. Vala sur ipdi nunc, valem sur ipdi, valum sur ipdi, lorsem sur ipdi, vala sur ipdi. Valem sur iprem nunc, lorsa sur iprium. Valum sur ipdi et, lorsus sur ipci. Valem sur iprem. Valem sur ipci. Lorsa sur iprium. Lorsem sur ipci, valus sur iprem. Lorsem sur iprem nunc, valus sur iprium.
Answer Preview
Only 50% of students answer this correctly


NClaborn

  • Member
  • Posts: 560
Reply 2 on: Apr 7, 2020
Great answer, keep it coming :)

Perkypinki

  • Member
  • Posts: 339
Reply 3 on: Yesterday
Gracias!

« previous next »
 

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?

People with high total cholesterol have about two times the risk for heart disease as people with ideal levels.

Did you know?

A recent study has found that following a diet rich in berries may slow down the aging process of the brain. This diet apparently helps to keep dopamine levels much higher than are seen in normal individuals who do not eat berries as a regular part of their diet as they enter their later years.

Did you know?

Coca-Cola originally used coca leaves and caffeine from the African kola nut. It was advertised as a therapeutic agent and "pickerupper." Eventually, its formulation was changed, and the coca leaves were removed because of the effects of regulation on cocaine-related products.

Did you know?

Most fungi that pathogenically affect humans live in soil. If a person is not healthy, has an open wound, or is immunocompromised, a fungal infection can be very aggressive.

How genes produce proteins that determine traits in a simple dominant-recessive relationship. How genes produce proteins that determine traits in a simple dominant-recessive relationship.
Simple food web of an Arctic island. NOTE: The indication of detritivores and pathogens was not part Simple food web of an Arctic island. NOTE: The indication of detritivores and pathogens was not part
(A) Closed (or simple) fracture and (B) open (or compound) fracture. (A) Closed (or simple) fracture and (B) open (or compound) fracture.
Summary of the Effects of Massage Summary of the Effects of Massage
Summary of Life's Characteristic Summary of Life's Characteristic
Summary of Single Variable Discrete Models Summary of Single Variable Discrete Models
Video: Asthma Treatment

For a complete list of videos, visit our video library