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

Author Question: A study of college dropouts models the number of undergraduate credits a student successfully earns ... (Read 26 times)

acwiles

  • Full Member
  • ***
  • Posts: 152
on: Feb 26, 2023

Question 1

A sample of recorded dog barks is analyzed for decibel intensity. The mean intensity is 62.25 decibels, with a variance of 4.45. If this data set is normally distributed, we would expect approximately 95% of the barks to be within what range?

◦

(58.03, 66.47)


◦

(60.16, 64.36)


◦

(55.92, 66.47)


◦

(53.35, 71.15)



Question 2

A study of college dropouts models the number of undergraduate credits a student successfully earns prior to quitting using an exponential random variable. If the observed average number of credits earned is 22.5, what proportion of students drop out with more than 100 credits, assuming an exponential random variable is appropriate here?

◦

0.0117


◦

0.0392


◦

0.9802


◦

0.2250

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 acwiles on Feb 26, 2023

jojomac20

  • Full Member
  • ***
  • Posts: 149
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 25% of students answer this correctly


acwiles

  • Member
  • Posts: 152
Reply 2 on: Feb 26, 2023
Gracias!

deja

  • Member
  • Posts: 332
Reply 3 on: Yesterday
Excellent

« previous next »
 

Did you know?

In 2006, a generic antinausea drug named ondansetron was approved. It is used to stop nausea and vomiting associated with surgery, chemotherapy, and radiation therapy.

Did you know?

Amphetamine poisoning can cause intravascular coagulation, circulatory collapse, rhabdomyolysis, ischemic colitis, acute psychosis, hyperthermia, respiratory distress syndrome, and pericarditis.

Did you know?

Street names for barbiturates include reds, red devils, yellow jackets, blue heavens, Christmas trees, and rainbows. They are commonly referred to as downers.

Did you know?

As many as 28% of hospitalized patients requiring mechanical ventilators to help them breathe (for more than 48 hours) will develop ventilator-associated pneumonia. Current therapy involves intravenous antibiotics, but new antibiotics that can be inhaled (and more directly treat the infection) are being developed.

Did you know?

According to the FDA, adverse drug events harmed or killed approximately 1,200,000 people in the United States in the year 2015.

Water striders serve as a model organism for the study of sexual conflict between males and females. Water striders serve as a model organism for the study of sexual conflict between males and females.
Models of the α helix, showing different aspects of its structure Models of the α helix, showing different aspects of its structure
Part A - Calculating the expected number of each phenotype Part A - Calculating the expected number of each phenotype
The Location and Number of Food- and Beverage-Processing Facilities The Location and Number of Food- and Beverage-Processing Facilities
Sensitivity study for facial difference Sensitivity study for facial difference
The distribution of the number of hours that a random sample of people spend doing chores per ... The distribution of the number of hours that a random sample of people spend doing chores per ...
Video: Corpus Callosum Animation

For a complete list of videos, visit our video library