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

Author Question: The time at which the mailman delivers the mail to Ace Bike Shop follows a normal distribution with ... (Read 110 times)

TVarnum

  • Hero Member
  • *****
  • Posts: 548
on: Jun 24, 2018
The time at which the mailman delivers the mail to Ace Bike Shop follows a normal distribution with mean 2:00 P.M. and standard deviation of 15 minutes.
 a. What is the probability the mail will arrive after 2:30 P.M.?
  b. What is the probability the mail will arrive before 1:36 P.M.?
  c. What is the probability the mail will arrive between 1:48 P.M. and 2:09 P.M.?

Question 2

In a random sample of 200 registered voters, 120 indicated they are Democrats. Develop a 95 confidence interval for the proportion of registered voters in the population who are Democrats.


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

pocatato

  • Sr. Member
  • ****
  • Posts: 333
Reply #1 on: Jun 24, 2018
Answer to Question 1

a. .0228
b. .0548
c. .5138

Answer to Question 2

.5321 to .6679


TVarnum

  • Member
  • Posts: 548
Reply 2 on: Jun 24, 2018
Wow, this really help

jomama

  • Member
  • Posts: 346
Reply 3 on: Yesterday
Great answer, keep it coming :)

« previous next »
 

Did you know?

Alcohol acts as a diuretic. Eight ounces of water is needed to metabolize just 1 ounce of alcohol.

Did you know?

Anesthesia awareness is a potentially disturbing adverse effect wherein patients who have been paralyzed with muscle relaxants may awaken. They may be aware of their surroundings but unable to communicate or move. Neurologic monitoring equipment that helps to more closely check the patient's anesthesia stages is now available to avoid the occurrence of anesthesia awareness.

Did you know?

The tallest man ever known was Robert Wadlow, an American, who reached the height of 8 feet 11 inches. He died at age 26 years from an infection caused by the immense weight of his body (491 pounds) and the stress on his leg bones and muscles.

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?

The first oral chemotherapy drug for colon cancer was approved by FDA in 2001.

Tonsils—normal and enlarged. Tonsils—normal and enlarged.
Legs after a bike ride Legs after a bike ride
Aggregates are people who happen to be in the same place at the same time. Aggregates are people who happen to be in the same place at the same time.
Disitive Time For Fish Disitive Time For Fish
The frequency of aneuploidy changes dramatically over developmental time. Between 6 to 8 weeks and 2 The frequency of aneuploidy changes dramatically over developmental time. Between 6 to 8 weeks and 2
The Geologic Time Scale The Geologic Time Scale
Video: Baroreceptor Reflex

For a complete list of videos, visit our video library