« previous next »

Author Question: Candidate A is running for president of the student government at a large university. The proportion ... (Read 83 times)

vinney12

  • Hero Member
  • *****
  • Posts: 586
on: Jun 24, 2018
Candidate A is running for president of the student government at a large university. The proportion of voters who favor the candidate is .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 p?
  b. What is the probability that the number of voters in the sample who will not favor Candidate A will be between 26 and 30?
 c. What is the probability that the number of voters in the sample who will NOT favor Candidate A will be more than 16?

Question 2

Assume z is a standard normal random variable. Then P(z  2.11) equals _____.
 a. .4821
  b. .9821
  c. .5
  d. .0174


phuda

  • Sr. Member
  • ****
  • Posts: 348
Reply #1 on: Jun 24, 2018
Answer to Question 1

a. .8; .04; normal
b. .0606
c. .8413

Answer to Question 2

d


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
« previous next »
 

Did you know?

It is believed that humans initially contracted crabs from gorillas about 3 million years ago from either sleeping in gorilla nests or eating the apes.

Did you know?

Atropine was named after the Greek goddess Atropos, the oldest and ugliest of the three sisters known as the Fates, who controlled the destiny of men.

Did you know?

Drug-induced pharmacodynamic effects manifested in older adults include drug-induced renal toxicity, which can be a major factor when these adults are experiencing other kidney problems.

Did you know?

Hypertension is a silent killer because it is deadly and has no significant early symptoms. The danger from hypertension is the extra load on the heart, which can lead to hypertensive heart disease and kidney damage. This occurs without any major symptoms until the high blood pressure becomes extreme. Regular blood pressure checks are an important method of catching hypertension before it can kill you.

Did you know?

Adolescents often feel clumsy during puberty because during this time of development, their hands and feet grow faster than their arms and legs do. The body is therefore out of proportion. One out of five adolescents actually experiences growing pains during this period.

A star-forming region in the Large Magellanic Cloud. A star-forming region in the Large Magellanic Cloud.
Seven black members of Congress in 1871 are from left to right: Senator Hiram Revels (R-MS) and Repr Seven black members of Congress in 1871 are from left to right: Senator Hiram Revels (R-MS) and Repr
“Mission Accomplished” proclaimed the banner on the USS Abraham Lincoln, where on May 1, 2003, Presi “Mission Accomplished” proclaimed the banner on the USS Abraham Lincoln, where on May 1, 2003, Presi
Student Test Scores versus GDP per Capita Student Test Scores versus GDP per Capita
Running Water Running Water
Video: Epinephrine/NE (heart rate, altered blood flow, glycogenolysis & bronchodilation)

For a complete list of videos, visit our video library