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

Author Question: When you are testing whether two population means of two normally distributed populations differ and ... (Read 33 times)

ahunt13

  • Full Member
  • ***
  • Posts: 157
on: Feb 26, 2023
When you are testing whether two population means of two normally distributed populations differ and the population variances are both unknown but unequal, thet test statistics will usually have a non-integer number of degrees of freedomv. In this case, you should:

◦

round down to the previous integer.


◦

round up to the next integer.


◦

assume that the population variances are equal and usev=n1+n2– 2.


◦

change the sample sizes until the number of degrees of freedom is an integer.

Introductory Statistics: A Problem-Solving Approach ¦ Kokoska ¦ 3rd Edition
Buy Test-Bank


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by ahunt13 on Feb 26, 2023

Kevin5!

  • Full Member
  • ***
  • Posts: 188
Reply #1 on: Feb 26, 2023
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 39% of students answer this correctly


ahunt13

  • Member
  • Posts: 157
Reply 2 on: Feb 26, 2023
Wow, this really help

AngeliqueG

  • Member
  • Posts: 343
Reply 3 on: Yesterday
Excellent

« previous next »
 

Did you know?

The term bacteria was devised in the 19th century by German biologist Ferdinand Cohn. He based it on the Greek word "bakterion" meaning a small rod or staff. Cohn is considered to be the father of modern bacteriology.

Did you know?

Never take aspirin without food because it is likely to irritate your stomach. Never give aspirin to children under age 12. Overdoses of aspirin have the potential to cause deafness.

Did you know?

In most cases, kidneys can recover from almost complete loss of function, such as in acute kidney (renal) failure.

Did you know?

Once thought to have neurofibromatosis, Joseph Merrick (also known as "the elephant man") is now, in retrospect, thought by clinical experts to have had Proteus syndrome. This endocrine disease causes continued and abnormal growth of the bones, muscles, skin, and so on and can become completely debilitating with severe deformities occurring anywhere on the body.

Did you know?

When Gabriel Fahrenheit invented the first mercury thermometer, he called "zero degrees" the lowest temperature he was able to attain with a mixture of ice and salt. For the upper point of his scale, he used 96°, which he measured as normal human body temperature (we know it to be 98.6° today because of more accurate thermometers).

Testing the reducing atmosphere hypothesis for the origin of life - the Miller and Urey experiment. Testing the reducing atmosphere hypothesis for the origin of life - the Miller and Urey experiment.
Details of plant population biology from repeat photography: (a) saguaro cactus in MacDougal Crater, Details of plant population biology from repeat photography: (a) saguaro cactus in MacDougal Crater,
Temperature Means and Ranges Temperature Means and Ranges
Write the equation for the population y at any instant Write the equation for the population y at any instant
Population and Settlement Population and Settlement
If the random variable x is exponentially distributed with parameter λ = 4, then P(x ≤ ... If the random variable x is exponentially distributed with parameter λ = 4, then P(x ≤ ...
Video: Epinephrine/NE (heart rate, altered blood flow, glycogenolysis & bronchodilation)

For a complete list of videos, visit our video library