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

Author Question: A study was designed to investigate the effects of two variables - (1) a student's level of ... (Read 77 times)

Davideckstein7

  • Hero Member
  • *****
  • Posts: 555
on: Jan 16, 2020
A study was designed to investigate the effects of two variables - (1) a student's level of mathematical anxiety and (2) teaching method - on a student's achievement in a mathematics course. Students who had a low level of mathematical anxiety were taught using the traditional expository method. These students obtained a mean score of 500 with a standard deviation of 40 on a standardized test. Assuming a bell-shaped distribution, what percentage of scores exceeded 420?
◦ approximately 95%
◦ approximately 84%
◦ approximately 97.5%
◦ approximately 2.5%
Statistics: Informed Decisions Using Data ¦ Sullivan ¦ 5th Edition
Buy Test-Bank


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by Davideckstein7 on Jan 16, 2020

CourtneyCNorton

  • Sr. Member
  • ****
  • Posts: 317
Reply #1 on: Jan 16, 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 25% of students answer this correctly


Davideckstein7

  • Member
  • Posts: 555
Reply 2 on: Jan 16, 2020
:D TYSM

amynguyen1221

  • Member
  • Posts: 355
Reply 3 on: Yesterday
Thanks for the timely response, appreciate it

« previous next »
 

Did you know?

Long-term mental and physical effects from substance abuse include: paranoia, psychosis, immune deficiencies, and organ damage.

Did you know?

Limit intake of red meat and dairy products made with whole milk. Choose skim milk, low-fat or fat-free dairy products. Limit fried food. Use healthy oils when cooking.

Did you know?

Persons who overdose with cardiac glycosides have a better chance of overall survival if they can survive the first 24 hours after the overdose.

Did you know?

More than 50% of American adults have oral herpes, which is commonly known as "cold sores" or "fever blisters." The herpes virus can be active on the skin surface without showing any signs or causing any symptoms.

Did you know?

Chronic marijuana use can damage the white blood cells and reduce the immune system's ability to respond to disease by as much as 40%. Without a strong immune system, the body is vulnerable to all kinds of degenerative and infectious diseases.

Effects of Twinkling Effects of Twinkling
The twin method can be used to investigate genetic and environmental influences on the development o The twin method can be used to investigate genetic and environmental influences on the development o
School is over—but not for this student. After the regular school day, hundreds of thousands in ... School is over—but not for this student. After the regular school day, hundreds of thousands in ...
Muscle structure seen at the EM level Muscle structure seen at the EM level
Effects of Retrieval Practice on Predicted and Actual Memory Performance Effects of Retrieval Practice on Predicted and Actual Memory Performance
Analogy showing the effects of substitution, deletion, and insertion of one letter in a sentence Analogy showing the effects of substitution, deletion, and insertion of one letter in a sentence
Video: Cell mediated immune response to a viral infection Animation

For a complete list of videos, visit our video library