Post a New Question

statistics

posted by .

What is the correct methodology for defining null and alternative hypothesis? Give an example

  • statistics -

    Below are examples for a one-sample test. For more than one sample, the hypotheses are set up a bit differently but the fundamentals are the same.

    Options for the null (one-sample):

    Ho: µ = ? -->meaning: population mean is equal to some value.
    Or...
    Ho: µ ≤ ? -->meaning: population mean is less than or equal to some value.
    Or...
    Ho: µ ≥ ? -->meaning: population mean is greater than or equal to some value.

    The null hypothesis ALWAYS uses an equals sign.

    Options for the alternative (one-sample):

    Ha: µ < ? -->meaning: population mean is less than some value
    Or...
    Ha: µ > ? -->meaning: population mean is greater than some value

    Note: I am using a question mark in place of a specific value. Usually you will know what the value is depending on the information given in a problem.

    I hope this will help and is what you were asking.

Respond to this Question

First Name
School Subject
Your Answer

Similar Questions

  1. Statistics

    Does the null hypothesis for a nondirectional alternative hypothesis differ from the null hypothesis for a directional alternative hypothesis?
  2. Statistics

    If my p-value = .322 and my significant level is .05 , then My Null Hypothesis is rejected and I must accept the Alternative hypothesis My Null Hypothesis is not rejected My Alternative hypothesis becomes the new Null Hypothesis I …
  3. Statistics

    are the following statements, Ho:=10 and Ha:equal to or less than, a valid pair of null and alternative hypothesis?
  4. statistics

    What is the alternative hypothesis for a null hypothesis stating that the average time a person keeps a cell phone is at most three years. Answer: Ha: mu > 3 State the null and alternative hypotheses for the following: You are investigating …
  5. statistics

    If the null hypothesis for the example survey posted is "There is no correlation between level of drug use and satisfaction with one's personal life." What are the three possible alternative hypotheses that could be stated, using only …
  6. Stats

    A statistical test is performed, and its P-value turns out to be about 3%. Which of the following must be true?
  7. Statistics

    A statistical test is performed, and its P-value turns out to be about 3%. Which of the following must be true?
  8. Statistics

    Please Help I'm desperate! Complete the hypothesis test with alternative hypothesis ìd < 0 based on the paired data that follow and d = M - N. Use á = 0.02. Assume normality. M 48 47 67 79 73 66 N 52 55 68 87 78 70 (a) Find t. …
  9. Research and Statistics

    Explain how to accept and reject the null?
  10. Statistics

    1. For the following research question, specify the parameter and give the null and alternative hypotheses. "Is there a difference in the proportions of male and female college students who smoke cigarettes?

More Similar Questions

Post a New Question