Author Question: In a sample of 1901 patients who underwent a certain type of surgery, 22 experienced complications. ... (Read 60 times)

sam.t96

  • Hero Member
  • *****
  • Posts: 570
In a sample of 1901 patients who underwent a certain type of surgery, 22 experienced complications. Find a 90 confidence interval for the proportion of all those undergoing this surgery who experience complications.
 
  A) 0.2105 to 0.2295 B) 0.2044 to 0.2356 C) 0.2011 to 0.2389 D) 0.2078 to 0.2322

Question 2

A percentage distribution is given below for the size of families in one U.S. city.
 
  Size Percentage
  2 43.5
  3 23.5
  4 19.6
  5 8.5
  6 3.2
  7+ 1.7
 
  A family is selected at random. Find the probability that the size of the family is 4 or more.
 
  Round results to three decimal places.
  A) 0.330 B) 0.134 C) 0.866 D) 0.196



LP

  • Sr. Member
  • ****
  • Posts: 302
Answer to Question 1

B

Answer to Question 2

A



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
 

Did you know?

Complications of influenza include: bacterial pneumonia, ear and sinus infections, dehydration, and worsening of chronic conditions such as asthma, congestive heart failure, or diabetes.

Did you know?

Illness; diuretics; laxative abuse; hot weather; exercise; sweating; caffeine; alcoholic beverages; starvation diets; inadequate carbohydrate consumption; and diets high in protein, salt, or fiber can cause people to become dehydrated.

Did you know?

Eating food that has been cooked with poppy seeds may cause you to fail a drug screening test, because the seeds contain enough opiate alkaloids to register as a positive.

Did you know?

HIV testing reach is still limited. An estimated 40% of people with HIV (more than 14 million) remain undiagnosed and do not know their infection status.

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.

For a complete list of videos, visit our video library