posted by .

1000 significance tests are performed using alpha = .05. Assumimg that all null hypotheses are true, about how many of the test results would you expect to be statistically significant?

  • statistics -

    About .05 or 5% of 1000 = 50. P = .05 indicates that the probability of the observed events would occur by chance 5 times in 100.

    I hope this helps. Thanks for asking.

Respond to this Question

First Name
School Subject
Your Answer

Similar Questions

  1. Statistics:Z and T Statistics: Confidence Interva

    Z and T Statistics: Confidence Intervals and Significance Tests: A friend who hears that you are taking a statistics course asks for help with a specific chemistry lab report. She has made four independent measurements of the specific …
  2. Statistics:Significance Test and Confidence Interv

    Significance Test and Confidence Intervals In General: For another significance test, the article says that the result was significant at the 1% level. Arte such results always, sometimes, or never significant at the 5% level?
  3. stats

    the p-value for a significance test is .0358. a correct interpretation of this p-value would be: a) about 3.6% of the data are significant b) about 3.6% of all samples are significant c) about 3.6% of all samples would produce a test …
  4. Statistics

    I'm confused about significance tests. I've tried to look up what it means for the p to be less than the alpha but none of the explanations made sense. I understand that the alpha is the probability of wrongly rejecting the null hypothesis …
  5. Statistics

    What does it mean when a researcher chooses the cutoff in a comparison distribution to be .01?
  6. stats

    Say you perform an experiment in which you flip a coin 20 times. You are looking for statistically significant outcomes (outcomes that have a probability of occurring that is less than your alpha level). You choose an alpha level of …
  7. math

    In 1000 samples, assuming that the null hypothesis is true, how many times would you expect to commit Type I error if alpha=.05?
  8. Statistics

    Twenty (20) students randomly assigned to an experimental group are studying for a test while listening to classical music. Thirty (30) students randomly assigned to a control group are studying for the same test in complete silence. …
  9. Stats

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

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

More Similar Questions