This topic contains a solution. Click here to go to the answer

Author Question: SAT verbal scores are normally distributed with a mean of 430 and a standard deviation of 120 (based ... (Read 67 times)

moongchi

  • Hero Member
  • *****
  • Posts: 516
SAT verbal scores are normally distributed with a mean of 430 and a standard deviation of 120 (based on the data from the College Board ATP). If a sample of 15 students is selected randomly, find the probability that the sample mean is above 500.
 
  Does the Central Limit theorem apply for this problem?

Question 2

Choosing 5 people (without replacement) from a group of 32 people, of which 15 are women, keeping track of the number of men chosen.
 
  A) Not binomial: the trials are not independent.
  B) Not binomial: the number of trials is not fixed.
  C) Not binomial: there are more than two outcomes for each trial.
  D) Procedure results in a binomial distribution.



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

TDubDCFL

  • Sr. Member
  • ****
  • Posts: 357
Answer to Question 1

Yes; even though the sample size is small, the original population is normal and the population SD is known.

Answer to Question 2

A





 

Did you know?

Pregnant women usually experience a heightened sense of smell beginning late in the first trimester. Some experts call this the body's way of protecting a pregnant woman from foods that are unsafe for the fetus.

Did you know?

In the United States, an estimated 50 million unnecessary antibiotics are prescribed for viral respiratory infections.

Did you know?

Nitroglycerin is used to alleviate various heart-related conditions, and it is also the chief component of dynamite (but mixed in a solid clay base to stabilize it).

Did you know?

The average human gut is home to perhaps 500 to 1,000 different species of bacteria.

Did you know?

Approximately 25% of all reported medication errors result from some kind of name confusion.

For a complete list of videos, visit our video library