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

Author Question: The following data represent the scores of 50 students on a statistics exam. The mean score is ... (Read 86 times)

Starlight

  • Hero Member
  • *****
  • Posts: 567
on: Feb 14, 2020

Question 1

Test scores for a history class had a mean of 79 with a standard deviation of 4.5. Test scores for a physics class had a  mean of 69 with a standard deviation of  3.7. One student earned a 86 on the history test and a 85 on the physics test. Calculate the z-score for each test. On which test did the student perform better?

Question 2

The following data represent the scores of 50 students on a statistics exam. The mean score is 80.02, and the standard deviation is 11.9.

39 51 59 63 66 68 68 69 70 71
71 71 73 74 76 76 76 77 78 79
79 79 79 80 80 82 83 83 83 85
85 86 86 88 88 88 88 89 89 89
90 90 91 91 92 95 96 97 97 98

Find the z-scores for the highest and lowest exam scores.
Statistics ¦ McClave, Sincich, Tamarack ¦ 12th Edition
Buy Test-Bank


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by Starlight on Feb 14, 2020

carolinefletcherr

  • Sr. Member
  • ****
  • Posts: 313
Reply #1 on: Feb 14, 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 29% of students answer this correctly


Starlight

  • Member
  • Posts: 567
Reply 2 on: Feb 14, 2020
Great answer, keep it coming :)

mohan

  • Member
  • Posts: 362
Reply 3 on: Yesterday
:D TYSM

« previous next »
 

Did you know?

All adults should have their cholesterol levels checked once every 5 years. During 2009–2010, 69.4% of Americans age 20 and older reported having their cholesterol checked within the last five years.

Did you know?

The average human gut is home to perhaps 500 to 1,000 different species of bacteria.

Did you know?

Throughout history, plants containing cardiac steroids have been used as heart drugs and as poisons (e.g., in arrows used in combat), emetics, and diuretics.

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?

Serum cholesterol testing in adults is recommended every 1 to 5 years. People with diabetes and a family history of high cholesterol should be tested even more frequently.

Cervical cancer (a) Top view of the uterus showing the presence of a tumor in the wall of the cervix Cervical cancer (a) Top view of the uterus showing the presence of a tumor in the wall of the cervix
The upper panel shows that scores of four diverse samples of boys on a moral reasoning test show a ... The upper panel shows that scores of four diverse samples of boys on a moral reasoning test show a ...
Terminals 85 and 86 represent the coil inside the relay. Terminal 30 is the power terminal, 87a is ... Terminals 85 and 86 represent the coil inside the relay. Terminal 30 is the power terminal, 87a is ...
The material safety data sheet (MSDS) for sulfuric acid showing the detailed technical information ... The material safety data sheet (MSDS) for sulfuric acid showing the detailed technical information ...
How to create a frequency table and histogram from raw data How to create a frequency table and histogram from raw data
Type III curve. Mortality is highest early in life. Data for a desert shrub (Cleome droserifolia). Type III curve. Mortality is highest early in life. Data for a desert shrub (Cleome droserifolia).
Video: Osmosis - Isotonic, Hypotonic, and Hypertonic​ Solutions

For a complete list of videos, visit our video library