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

Author Question: Consider the following hypothesis test: Ho: p = 0.5 Ha: p 0.5 A sample of 800 provided a sample ... (Read 157 times)

Shelles

  • Hero Member
  • *****
  • Posts: 582
on: Jun 24, 2018
Consider the following hypothesis test: Ho: p = 0.5 Ha: p  0.5 A sample of 800 provided a sample proportion of 0.58.
 a. Determine the standard error of the proportion.
  b. Compute the value of the test statistic.
  c. Determine the p-value, and at 95 confidence, test the hypotheses.

Question 2

You are given the following information obtained from a random sample of 5 observations. Assume the population has a normal distribution. 20 18 17 22 18 You want to determine whether or not the mean of the population from which this sample was taken is significantly less than 21.
 a. State the null and the alternative hypotheses.
  b. Compute the standard error of the mean.
  c. Determine the test statistic.
  d. Determine the p-value and at 90 confidence, test whether or not the mean of the population is significantly less than 21.


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

yotaSR5

  • Sr. Member
  • ****
  • Posts: 331
Reply #1 on: Jun 24, 2018
Answer to Question 1

a. 0.01768
b. Z = 4.53
c. p-value is almost zero; reject H0

Answer to Question 2

a. H0:   21
Ha:  < 21
b. 0.8944
c. t = -2.236
d. p-value is between .025 and .05; reject H0, the mean is significantly less than 21.


Shelles

  • Hero Member
  • *****
  • Posts: 582
Reply #2 on: Jun 24, 2018
Correct answers!


yotaSR5

  • Sr. Member
  • ****
  • Posts: 331
Reply #3 on: Jun 24, 2018
Great! Please up vote :D


« previous next »
 

Did you know?

The heart is located in the center of the chest, with part of it tipped slightly so that it taps against the left side of the chest.

Did you know?

Drug abusers experience the following scenario: The pleasure given by their drug (or drugs) of choice is so strong that it is difficult to eradicate even after years of staying away from the substances involved. Certain triggers may cause a drug abuser to relapse. Research shows that long-term drug abuse results in significant changes in brain function that persist long after an individual stops using drugs. It is most important to realize that the same is true of not just illegal substances but alcohol and tobacco as well.

Did you know?

More than 4.4billion prescriptions were dispensed within the United States in 2016.

Did you know?

Allergies play a major part in the health of children. The most prevalent childhood allergies are milk, egg, soy, wheat, peanuts, tree nuts, and seafood.

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.

The clonal selection hypothesis The clonal selection hypothesis
Sample Teaching Plan for Hypertension Sample Teaching Plan for Hypertension
A medical assistant holds a specimen container to receive a biopsy sample. A medical assistant holds a specimen container to receive a biopsy sample.
Sample prescriptions of drugs for oral herpes infection. Sample prescriptions of drugs for oral herpes infection.
Sample One-Day Menu Sample One-Day Menu
Morgan’s test-cross analysis of genetic linkage between autosomal genes Morgan’s test-cross analysis of genetic linkage between autosomal genes
Video: Mitosis step-by-step

For a complete list of videos, visit our video library