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

Author Question: The expected value for a binomial probability distribution is _____. a. E(x) = pn(1 n) b. E(x) = ... (Read 119 times)

MGLQZ

  • Hero Member
  • *****
  • Posts: 579
on: Jun 24, 2018
The expected value for a binomial probability distribution is _____.
 a. E(x) = pn(1  n)
  b. E(x) = p(1  p)
  c. E(x) = np
  d. E(x) = np(1  p)

Question 2

Consider the following hypotheses test. H0:   80 Ha:  < 80 A sample of 121 provided a sample mean of 77.3 . The population standard deviation is known to be 16.5.
 a. Compute the value of the test statistic.
  b. Determine the p-value; and using  = .063, test the above hypotheses.
  c. Using the critical value approach and  = .063, test the hypotheses.


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

Sammyo

  • Sr. Member
  • ****
  • Posts: 329
Reply #1 on: Jun 24, 2018
Answer to Question 1

c

Answer to Question 2

a. z = -1.8
b. p-value = .0359 < .063, reject H0
c. test statistic z = -1.8 < z.063 = -1.53, reject H0


MGLQZ

  • Hero Member
  • *****
  • Posts: 579
Reply #2 on: Jun 24, 2018
Correct answers!


Sammyo

  • Sr. Member
  • ****
  • Posts: 329
Reply #3 on: Jun 24, 2018
Great! Please up vote :D


« previous next »
 

Did you know?

The Centers for Disease Control and Prevention has released reports detailing the deaths of infants (younger than 1 year of age) who died after being given cold and cough medications. This underscores the importance of educating parents that children younger than 2 years of age should never be given over-the-counter cold and cough medications without consulting their physicians.

Did you know?

Though methadone is often used to treat dependency on other opioids, the drug itself can be abused. Crushing or snorting methadone can achieve the opiate "rush" desired by addicts. Improper use such as these can lead to a dangerous dependency on methadone. This drug now accounts for nearly one-third of opioid-related deaths.

Did you know?

About 3.2 billion people, nearly half the world population, are at risk for malaria. In 2015, there are about 214 million malaria cases and an estimated 438,000 malaria deaths.

Did you know?

The National Institutes of Health have supported research into acupuncture. This has shown that acupuncture significantly reduced pain associated with osteoarthritis of the knee, when used as a complement to conventional therapies.

Did you know?

For pediatric patients, intravenous fluids are the most commonly cited products involved in medication errors that are reported to the USP.

The Normal Distribution of Scores for a Standardized Intelligence Test The Normal Distribution of Scores for a Standardized Intelligence Test
The four processes of pharmacokinetics: absorption, distribution, metabolism, and excretion. The four processes of pharmacokinetics: absorption, distribution, metabolism, and excretion.
Population distribution (dispersion) Population distribution (dispersion)
Solve this probability question Solve this probability question
(a) The distribution of sickle cell anemia in the Old World. (b) The distribution of malaria overlap (a) The distribution of sickle cell anemia in the Old World. (b) The distribution of malaria overlap
ODDS AND PROBABILITY PLEASE ANSWER ALL I DONT HAVE ENOUGH CREDITS ODDS AND PROBABILITY PLEASE ANSWER ALL I DONT HAVE ENOUGH CREDITS
Video: Neuron structure and function - sensory neurons, association neurons & motor neurons

For a complete list of videos, visit our video library