« previous next »

Author Question: Express in your own words the procedure for finding the area under the standard normal curve between ... (Read 33 times)

big1devin

  • Hero Member
  • *****
  • Posts: 583
on: Jun 24, 2018
Express in your own words the procedure for finding the area under the standard normal curve between z = 0 and z = 1.53.

Question 2

An auditor for a large oil corporation has taken a random sample of monthly credit card charges for 32 individual (non-corporate) accounts. She found a mean of 81.76 . Assume that the population standard deviation is 48.2 . A 98 confidence interval estimate for the population mean of individual credit card charges would be:
 a. 81.76  19.89.
  b. 81.76  16.72.
  c. 81.76  112.94.
  d. 81.76  22.0.
  e. 81.76  2.33.


CharlieArnold

  • Sr. Member
  • ****
  • Posts: 319
Reply #1 on: Jun 24, 2018
Answer to Question 1

Use the standard normal table in text. Trace down the left hand column to 1.5 and go across the row until reaching the column headed at the top with .03. The value is 0.4370, which is the area between z = 0 and z = 1.53.

Answer to Question 2

A


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
« previous next »
 

Did you know?

A cataract is a clouding of the eyes' natural lens. As we age, some clouding of the lens may occur. The first sign of a cataract is usually blurry vision. Although glasses and other visual aids may at first help a person with cataracts, surgery may become inevitable. Cataract surgery is very successful in restoring vision, and it is the most frequently performed surgery in the United States.

Did you know?

In women, pharmacodynamic differences include increased sensitivity to (and increased effectiveness of) beta-blockers, opioids, selective serotonin reuptake inhibitors, and typical antipsychotics.

Did you know?

The Food and Drug Administration has approved Risperdal, an adult antipsychotic drug, for the symptomatic treatment of irritability in children and adolescents with autism. The approval is the first for the use of a drug to treat behaviors associated with autism in children. These behaviors are included under the general heading of irritability and include aggression, deliberate self-injury, and temper tantrums.

Did you know?

Looking at the sun may not only cause headache and distort your vision temporarily, but it can also cause permanent eye damage. Any exposure to sunlight adds to the cumulative effects of ultraviolet (UV) radiation on your eyes. UV exposure has been linked to eye disorders such as macular degeneration, solar retinitis, and corneal dystrophies.

Did you know?

The word drug comes from the Dutch word droog (meaning "dry"). For centuries, most drugs came from dried plants, hence the name.

When introduced into a new area, rabbits can overpopulate rapidly, becoming a nuisance, as on this u When introduced into a new area, rabbits can overpopulate rapidly, becoming a nuisance, as on this u
A) Normal bronchiole and (B) bronchiole constricted in asthma attack. A) Normal bronchiole and (B) bronchiole constricted in asthma attack.
Measuring the client’s weight with a standard platform scale Measuring the client’s weight with a standard platform scale
The slope of the curve y = ax^3 - bx^2 + cx - 3 at x = 2 is 5. If the point of inflection of the cur The slope of the curve y = ax^3 - bx^2 + cx - 3 at x = 2 is 5. If the point of inflection of the cur
Finding the graph of a Parabola using certain values Finding the graph of a Parabola using certain values
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: Steps of glucose catabolism

For a complete list of videos, visit our video library