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

Author Question: 100,000 randomly selected adults were asked whether they drink at least 48 oz of water each day and ... (Read 117 times)

james0929

  • Hero Member
  • *****
  • Posts: 586
on: Jul 25, 2018
100,000 randomly selected adults were asked whether they drink at least 48 oz of water each day and only 45 said yes. Identify the sample and population.
 
  A) Sample: the 45 of adults who drink at least 48 oz of water; population: all adults
  B) Sample: the 100,000 selected adults; population: the 45 of adults who drink at least 48 oz of water
  C) Sample: all adults ; population: the 100,000 selected adults
  D) Sample: the 100,000 selected adults; population: all adults

Question 2

Lengths of pregnancies are normally distributed with a mean of 268 days and a standard
  deviation of 15 days. (a) Find the probability of a pregnancy lasting more than 250 days.
  (b) Find the probability of a pregnancy lasting more than 280 days.
 
  Draw the diagram for
  each and discuss the part of the solution that would be different to finding the requested
  probabilities.


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

braelync

  • Sr. Member
  • ****
  • Posts: 350
Reply #1 on: Jul 25, 2018
Answer to Question 1

D

Answer to Question 2

Both (a) and (b) are solved by subtracting the area score from 1.


james0929

  • Hero Member
  • *****
  • Posts: 586
Reply #2 on: Jul 25, 2018
Thank you!


braelync

  • Sr. Member
  • ****
  • Posts: 350
Reply #3 on: Jul 25, 2018
Always glad to help...


« previous next »
 

Did you know?

During pregnancy, a woman is more likely to experience bleeding gums and nosebleeds caused by hormonal changes that increase blood flow to the mouth and nose.

Did you know?

By definition, when a medication is administered intravenously, its bioavailability is 100%.

Did you know?

The Babylonians wrote numbers in a system that used 60 as the base value rather than the number 10. They did not have a symbol for "zero."

Did you know?

Stroke kills people from all ethnic backgrounds, but the people at highest risk for fatal strokes are: black men, black women, Asian men, white men, and white women.

Did you know?

In 2012, nearly 24 milliion Americans, aged 12 and older, had abused an illicit drug, according to the National Institute on Drug Abuse (NIDA).

water molecules water molecules
Selected Disease-Modifying Antirheumatic Drugs Selected Disease-Modifying Antirheumatic Drugs
A typical eye wash station. A thorough flushing of the eyes with water is the first and often the ... A typical eye wash station. A thorough flushing of the eyes with water is the first and often the ...
Determining the extent of a burn: (A) rule of nines (adults); (B) Lund-Browder chart (children). Determining the extent of a burn: (A) rule of nines (adults); (B) Lund-Browder chart (children).
Rinse the soap off completely from fingertips to elbows. Water flows off the forearms near the ... Rinse the soap off completely from fingertips to elbows. Water flows off the forearms near the ...
Use tap water when making coffee, tea, or juice from concentrate, and for food preparation Use tap water when making coffee, tea, or juice from concentrate, and for food preparation
Video: Structures that affect circulation - arterioles and vasomotor responses and venous return

For a complete list of videos, visit our video library