Statistics

posted by .

Which of these statements is always true for a researcher who is using standard statistical
methods in a test of significance?
A. A researcher who rejects a true null hypothesis has committed a Type II error.
B. A researcher who rejects the null hypothesis has computed a test statistic that is negative
in value.
C. A researcher who rejects the null hypothesis has computed a P-value that is large in
value.
D. Increasing the sample size affects the probability of making a Type I error.
E. None of the above is true.
I have been trying this problem for hours and cannot understand it. Please help

  • Statistics -

    b

Respond to this Question

First Name
School Subject
Your Answer

Similar Questions

  1. Business Statistics

    In a goodness-of-fit test, the null hypothesis states that the data came from a normally distributed population. The researcher estimated the population mean and population standard deviation from a sample of 500 observations. In addition, …
  2. Statistics

    I have a question that involves explaining what is wrong in each of the following situations: (a) A random sample of size 20 is taken from a population that is assumed to have a standard deviation of 12. The standard deviation of the …
  3. Statistics

    What does it mean when a researcher chooses the cutoff in a comparison distribution to be .01?
  4. hypothesis testing

    A researcher asks whether attending a private high school leads to higher or lower performance on a test of social skills when compared to students attending public schools. A sample of 100 students from a private school produces a …
  5. statistics

    A researcher is testing a null hypothesis that states: H: ì = 50. A sample of 25 scores is selected and the mean is M = 55.Assuming that the sample variance is s2 = 100, compute the estimated standard error and the t statistic. Is …
  6. statistics

    To test H0:µ =80 versus H1:µ < 80, a simple random sample of size n = 22 is obtained from the population that is known to be normally distributed. (a) If = 76.9 and s = 8.5, compute the test statistic. (b) If the researcher decides …
  7. sti

    A researcher plans to use a sample of 500 men and women attending a well-known online university to study the relationship between the number of fast-food hamburgers consumed in a month and BMI (body mass index). The null hypothesis …
  8. statistics

    A researcher wants to carry out a hypothesis test involving the mean for a sample of n = 20. While the true value of the population standard deviation is unknown, the researcher is reasonably sure that the population is normally distributed. …
  9. Econ 112

    A researcher believes that the average size of farms in the U.S. has increased from the 2002 mean of 471 acres. She took a sample of 23 farms in 2011 to test her belief and found a sample mean of 498.8 acres and a sample standard deviation …
  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