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

Author Question: Midterm Exam Results reported as z-scores.The professor for one section of a multi-section math ... (Read 267 times)

09madisonrousseau09

  • Hero Member
  • *****
  • Posts: 559
on: Jul 24, 2018
Midterm Exam Results reported as z-scores.The professor for one section of a multi-section math course will be reporting his students' midterm exam scores as z-scores. Jackson's score on the midterm exam was 82 points. The section's class mean was 75 and the standard deviation was 5 points. What was his z-score?

Question 2

A randomly selected sample of n = 51 men in Brazil had an average lifespan of 59 years. The standard deviation was 10 years, and the standard error of the mean is 1.400 . Calculate a 90 confidence interval for the average lifespan for all men in Brazil.
 a. (42.2, 75.8)
  b. (56.6, 61.4)
  c. (56.2, 61.8)
  d. None of the above


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

rachel

  • Sr. Member
  • ****
  • Posts: 323
Reply #1 on: Jul 24, 2018
Answer to Question 1

Z = (82  75)/5 = 1.4

Answer to Question 2

B


09madisonrousseau09

  • Member
  • Posts: 559
Reply 2 on: Jul 24, 2018
Wow, this really help

Zebsrer

  • Member
  • Posts: 284
Reply 3 on: Yesterday
YES! Correct, THANKS for helping me on my review

« previous next »
 

Did you know?

The term pharmacology is derived from the Greek words pharmakon("claim, medicine, poison, or remedy") and logos ("study").

Did you know?

For about 100 years, scientists thought that peptic ulcers were caused by stress, spicy food, and alcohol. Later, researchers added stomach acid to the list of causes and began treating ulcers with antacids. Now it is known that peptic ulcers are predominantly caused by Helicobacter pylori, a spiral-shaped bacterium that normally exist in the stomach.

Did you know?

Once thought to have neurofibromatosis, Joseph Merrick (also known as "the elephant man") is now, in retrospect, thought by clinical experts to have had Proteus syndrome. This endocrine disease causes continued and abnormal growth of the bones, muscles, skin, and so on and can become completely debilitating with severe deformities occurring anywhere on the body.

Did you know?

The strongest synthetic topical retinoid drug available, tazarotene, is used to treat sun-damaged skin, acne, and psoriasis.

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.

bimanual exam bimanual exam
Cross section of a myocardial infarction. Cross section of a myocardial infarction.
Sagittal section, medial view of the pons Sagittal section, medial view of the pons
IQ scores form what mathematicians call a normal distribution "bell curve" IQ scores form what mathematicians call a normal distribution "bell curve"
Hyperbola Math Problem Hyperbola Math Problem
Math question Math question
Video: Magnetic resonance imaging (MRI)

For a complete list of videos, visit our video library