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

Author Question: Before drawing any conclusions about the relationship between two variables shown in a ... (Read 220 times)

naturalchemist

  • Hero Member
  • *****
  • Posts: 542
on: Jun 24, 2018
Before drawing any conclusions about the relationship between two variables shown in a crosstabulation, you should _____.
 a. investigate whether any hidden variables could affect the conclusions
  b. construct a scatter diagram and find the trendline
  c. develop a relative frequency distribution
  d. construct an ogive for each of the variables

Question 2

Michael is running for president. The proportion of voters who favor Michael is 0.8 . A simple random sample of 100 voters is taken.
 a. What are the expected value, standard deviation, and shape of the sampling distribution of ?
  b. What is the probability that the number of voters in the sample who will not favor Michael will be between 26 and 30?
  c. What is the probability that the number of voters in the sample who will not favor Michael will be more than 16?


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

allisonblackmore

  • Sr. Member
  • ****
  • Posts: 330
Reply #1 on: Jun 24, 2018
Answer to Question 1

a

Answer to Question 2

a. 0.8; 0.04; normal
b. 0.0606
c. 0.8413


naturalchemist

  • Hero Member
  • *****
  • Posts: 542
Reply #2 on: Jun 24, 2018
Thank you :)


allisonblackmore

  • Sr. Member
  • ****
  • Posts: 330
Reply #3 on: Jun 24, 2018
Happy to help you


« previous next »
 

Did you know?

Giardia is one of the most common intestinal parasites worldwide, and infects up to 20% of the world population, mostly in poorer countries with inadequate sanitation. Infections are most common in children, though chronic Giardia is more common in adults.

Did you know?

Thyroid conditions may make getting pregnant impossible.

Did you know?

Congestive heart failure is a serious disorder that carries a reduced life expectancy. Heart failure is usually a chronic illness, and it may worsen with infection or other physical stressors.

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?

Elderly adults are at greatest risk of stroke and myocardial infarction and have the most to gain from prophylaxis. Patients ages 60 to 80 years with blood pressures above 160/90 mm Hg should benefit from antihypertensive treatment.

Position of the lungs within the thoracic cavity; anterior view illustrating regions of the lungs an Position of the lungs within the thoracic cavity; anterior view illustrating regions of the lungs an
Change in Drawing Abilities from Early to Middle Childhood Drawings become more realistic as fine m Change in Drawing Abilities from Early to Middle Childhood Drawings become more realistic as fine m
The relationship between the crankshaft position (CKP) sensor and the camshaft position (CMP) sensor ... The relationship between the crankshaft position (CKP) sensor and the camshaft position (CMP) sensor ...
Schematic drawing of a rod cell Schematic drawing of a rod cell
Figure of a Woman with a Drawing Showing Evidence of Original Painting and Outlining Design Scheme Figure of a Woman with a Drawing Showing Evidence of Original Painting and Outlining Design Scheme
Golden sonic grade 1 drawing Golden sonic grade 1 drawing
Video: Digestion Animation

For a complete list of videos, visit our video library