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 128 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?

Lower drug doses for elderly patients should be used first, with titrations of the dose as tolerated to prevent unwanted drug-related pharmacodynamic effects.

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?

All patients with hyperparathyroidism will develop osteoporosis. The parathyroid glands maintain blood calcium within the normal range. All patients with this disease will continue to lose calcium from their bones every day, and there is no way to prevent the development of osteoporosis as a result.

Did you know?

Disorders that may affect pharmacodynamics include genetic mutations, malnutrition, thyrotoxicosis, myasthenia gravis, Parkinson's disease, and certain forms of insulin-resistant diabetes mellitus.

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.

Humpbacks frequently breach, throwing two thirds or more of their bodies out of the water and splash Humpbacks frequently breach, throwing two thirds or more of their bodies out of the water and splash
Selected Nonsteroidal Anti-Inflammatory Drugs (NSAIDs) Selected Nonsteroidal Anti-Inflammatory Drugs (NSAIDs)
Food Sources of Fiber Adults need to consume about 21 to 38 grams of fiber daily Food Sources of Fiber Adults need to consume about 21 to 38 grams of fiber daily
Variations in Ocean Water Temperature With Depth Variations in Ocean Water Temperature With Depth
Variations in Ocean Water Density with Depth Variations in Ocean Water Density with Depth
How humans maintain homeostasis with respect to water and ions How humans maintain homeostasis with respect to water and ions
Video: Skin Cancer

For a complete list of videos, visit our video library