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

Author Question: A professor at a local community college noted that the grades of his students were normally ... (Read 120 times)

Lin Shi

  • Full Member
  • ***
  • Posts: 131
on: Mar 25, 2023

Question 1

A manufacturing process produces items whose weights are normally distributed. It is known that 22.57% of all the items produced weigh between 100 grams up to the mean and 49.18% weigh from the mean up to 190 grams. Determine the mean and the standard deviation.



Question 2

A professor at a local community college noted that the grades of his students were normally distributed with a mean of 74 and a standard deviation of 10.  The professor has informed us that 6.3 percent of his students received A's while only 2.5 percent of his students failed the course and received F's.


a.

What is the minimum score needed to make an A?

b.

What is the maximum score among those who received an F?

c.

If there were 5 students who did not pass the course, how many students took the course?

Essentials of Statistics for Business and Economics ¦ Anderson, Sweeney, Williams, Camm, Cochran ¦ 7th Edition
Buy Test-Bank


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by Lin Shi on Mar 25, 2023

char00char

  • Full Member
  • ***
  • Posts: 173
Reply #1 on: Mar 25, 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 25% of students answer this correctly


Lin Shi

  • Member
  • Posts: 131
Reply 2 on: Mar 25, 2023
:D TYSM

Zebsrer

  • Member
  • Posts: 284
Reply 3 on: Yesterday
Thanks for the timely response, appreciate it

« previous next »
 

Did you know?

Cancer has been around as long as humankind, but only in the second half of the twentieth century did the number of cancer cases explode.

Did you know?

There are more sensory neurons in the tongue than in any other part of the body.

Did you know?

Computer programs are available that crosscheck a new drug's possible trade name with all other trade names currently available. These programs detect dangerous similarities between names and alert the manufacturer of the drug.

Did you know?

Famous people who died from poisoning or drug overdose include, Adolf Hitler, Socrates, Juan Ponce de Leon, Marilyn Monroe, Judy Garland, and John Belushi.

Did you know?

The newest statin drug, rosuvastatin, has been called a superstatin because it appears to reduce LDL cholesterol to a greater degree than the other approved statin drugs.

A biofilm composed of a community of microorganisms glued by mucilage to a surface. A biofilm composed of a community of microorganisms glued by mucilage to a surface.
Local Anesthetic Agents Local Anesthetic Agents
College Physics College Physics
Grades, IQ, and Self-Discipline Grades, IQ, and Self-Discipline
Sketch the graph of the following functions using local maximum/minimums, interc Sketch the graph of the following functions using local maximum/minimums, interc
Students pointing at a computer screen Students pointing at a computer screen
Video: The primary factors that affect circulation - MABP, CO and SVR

For a complete list of videos, visit our video library