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

Author Question: A teacher wants to see if two different forms of an exam are equivalent or if one of the exams is ... (Read 231 times)

OSWALD

  • Hero Member
  • *****
  • Posts: 580
on: Aug 30, 2019
A teacher wants to see if two different forms of an exam are equivalent or if one of the exams is more difficult than the other. She has 120 students, which she randomly sorts into two groups of 60. The group that that takes exam A has a mean score of 78.1% with a standard deviation of 5.6%. Exam B scores an average of 74.8% with a standard deviation of 8.7%.

Find and interpret a 95% confidence interval. Also explain how the values of your confidence interval correspond with your conclusion on #1.
Stats: Modeling the World ¦ Bock, Velleman, De Veaux ¦ 4th Edition
Buy Test-Bank


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by OSWALD on Aug 30, 2019

sultansheikh

  • Sr. Member
  • ****
  • Posts: 335
Reply #1 on: Aug 30, 2019
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 25% of students answer this correctly


OSWALD

  • Hero Member
  • *****
  • Posts: 580
Reply #2 on: Aug 30, 2019
Thanks


sultansheikh

  • Sr. Member
  • ****
  • Posts: 335
Reply #3 on: Aug 30, 2019
Welcome :)


« previous next »
 

Did you know?

It is widely believed that giving a daily oral dose of aspirin to heart attack patients improves their chances of survival because the aspirin blocks the formation of new blood clots.

Did you know?

Women are 50% to 75% more likely than men to experience an adverse drug reaction.

Did you know?

All adverse reactions are commonly charted in red ink in the patient's record and usually are noted on the front of the chart. Failure to follow correct documentation procedures may result in malpractice lawsuits.

Did you know?

Between 1999 and 2012, American adults with high total cholesterol decreased from 18.3% to 12.9%

Did you know?

Congestive heart failure is a serious disorder that carries a reduced life expectancy. Heart failure is usually a chronic illness, and it may worsen with infection or other physical stressors.

Two equivalent ways of drawing a phylogeny Two equivalent ways of drawing a phylogeny
Examples of common forms of strabismus: (A) esotropia with the right eye turning inward and (B) exot Examples of common forms of strabismus: (A) esotropia with the right eye turning inward and (B) exot
Exam 1 Exam 1
The lemurs rediated into a variety of forms, including the sifaka. The lemurs rediated into a variety of forms, including the sifaka.
What single payment one year from now would be economically equivalent to payments of $1,000 ... What single payment one year from now would be economically equivalent to payments of $1,000 ...
Different forms of a gene are called alleles Different forms of a gene are called alleles
Video: Epidural Hematoma

For a complete list of videos, visit our video library