Author Question: When using a z-test for comparing a sample mean against a standard, one must consider all of the ... (Read 119 times)

maegan_martin

  • Hero Member
  • *****
  • Posts: 532
When using a z-test for comparing a sample mean against a standard, one must consider all of the following EXCEPT whether the
 a. variance of the variable in the population is known or unknown.
  b. distribution of the variable in the population is normal (or at least symmetrical) or asymmetrical.
  c. mean falls within an acceptable confidence interval.
  d. sample size is small or large.
  e. All of the above must be considered.

Question 2

Which of the following would be an appropriate interpretation of a p-value?
 a. A p-value of p < 0.0001 is highly significant' and therefore much more valid than a p value of 0.05.
  b. When a null hypothesis is rejected at some predetermined p level, sampling error is an unlikely explanation of the results, given that the null hypothesis is true.
  c. When a p-value shows significance, managerial and practical significance can be assumed.
  d. The probability that the research hypothesis is true is equal to 1 minus the p-value.
  e. A p-value represents the probability that the results occurred because of sampling error.



stallen

  • Sr. Member
  • ****
  • Posts: 336
Answer to Question 1

C

Answer to Question 2

b



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question


 

Did you know?

The term pharmacology is derived from the Greek words pharmakon("claim, medicine, poison, or remedy") and logos ("study").

Did you know?

Certain topical medications such as clotrimazole and betamethasone are not approved for use in children younger than 12 years of age. They must be used very cautiously, as directed by a doctor, to treat any child. Children have a much greater response to topical steroid medications.

Did you know?

Acetaminophen (Tylenol) in overdose can seriously damage the liver. It should never be taken by people who use alcohol heavily; it can result in severe liver damage and even a condition requiring a liver transplant.

Did you know?

Persons who overdose with cardiac glycosides have a better chance of overall survival if they can survive the first 24 hours after the overdose.

Did you know?

There are approximately 3 million unintended pregnancies in the United States each year.

For a complete list of videos, visit our video library