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

Author Question: A student took a chemistry exam where the exam scores were mound-shaped with a mean score of 90 and ... (Read 131 times)

Deast7027

  • Hero Member
  • *****
  • Posts: 538
on: Jul 24, 2018
A student took a chemistry exam where the exam scores were mound-shaped with a mean score of 90 and a standard deviation of 64 . She also took a statistics exam where the scores were mound-shaped, the mean score was 70 and the standard deviation was 16 . If the student's grades were 102 on the chemistry exam and 77 on the statistics exam, then:
 a. the student did relatively better on the chemistry exam than on the statistics exam, compared to the other students in each class.
  b. the student did relatively better on the statistics exam than on the chemistry exam, compared to the other students in the two classes.
  c. the student's scores on both exams are comparable, when accounting for the scores of the other students in the two classes.
  d. it is impossible to say which of the student's exam scores indicates the better performance.
  e. the student did relatively the same on both exams.

Question 2

In comparing two independent means when the 's are unknown, we may use the standard normal distribution.
  Indicate whether the statement is true or false


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

cat123

  • Sr. Member
  • ****
  • Posts: 310
Reply #1 on: Jul 24, 2018
Answer to Question 1

B

Answer to Question 2

F


Deast7027

  • Hero Member
  • *****
  • Posts: 538
Reply #2 on: Jul 24, 2018
Both answers were spot on, thank you once again


cat123

  • Sr. Member
  • ****
  • Posts: 310
Reply #3 on: Jul 24, 2018
Great! Please up vote :D


« previous next »
 

Did you know?

Most strokes are caused when blood clots move to a blood vessel in the brain and block blood flow to that area. Thrombolytic therapy can be used to dissolve the clot quickly. If given within 3 hours of the first stroke symptoms, this therapy can help limit stroke damage and disability.

Did you know?

Your heart beats over 36 million times a year.

Did you know?

Asthma is the most common chronic childhood disease in the world. Most children who develop asthma have symptoms before they are 5 years old.

Did you know?

Stevens-Johnson syndrome and Toxic Epidermal Necrolysis syndrome are life-threatening reactions that can result in death. Complications include permanent blindness, dry-eye syndrome, lung damage, photophobia, asthma, chronic obstructive pulmonary disease, permanent loss of nail beds, scarring of mucous membranes, arthritis, and chronic fatigue syndrome. Many patients' pores scar shut, causing them to retain heat.

Did you know?

Malaria mortality rates are falling. Increased malaria prevention and control measures have greatly improved these rates. Since 2000, malaria mortality rates have fallen globally by 60% among all age groups, and by 65% among children under age 5.

How to solve ratio problems related to chemistry How to solve ratio problems related to chemistry
An eager graduate student at Carleton, counts geese in the marshes off the Ottawa river. In ... An eager graduate student at Carleton, counts geese in the marshes off the Ottawa river. In ...
Chemistry Questions Chemistry Questions
Chemistry lab help Chemistry lab help
chemistry homework help please chemistry homework help please
chemistry homework help energy related chemistry homework help energy related
Video: The Hypothalamus: The Body's Thermostat (Human Thermostat)

For a complete list of videos, visit our video library