Statistic

posted by .

Twenty students assigned to an experimental group receive 30 in a control group has a mean of 38 on the test (with an estimated population standard deviation of 3); the control group has a mean of 35 (with an estimated population standard deviation of 5). Using the .05 level, what should the experimenter conclude?
(a) use the steps of hypothesis testing
(b)sketch the distributors involved
(c)explain your answer to someone who is familar with the test for a single sample, but not independent means

I am confused on how to answer this question. Can somebody please help.

  • Statistic -

    Im confused by your statement "Twenty students assigned to an experimental group receive 30 in a control group"

Respond to this Question

First Name
School Subject
Your Answer

Similar Questions

  1. statistics

    Would this be 2 tailed test or a 1 tailed test?
  2. sattistics

    Twenty students randomly assigned to an experimental group receive an instructional program: 30 in a control group do not. After 6 months, both groups are tested on their knowledge. The experimental group has a mean of 38 on the test(with …
  3. Statistic

    Twenty students assigned to an experimental group receive 30 in a control group has a mean of 38 on the test (with an estimated population standard deviation of 3); the control group has a mean of 35 (with an estimated population standard …
  4. Statistic

    18. Twenty students randomly assigned to an experimental group receive an instructional program; 30 in a control group do not. After 6 months, both groups are tested on their knowledge. The experimental group has a mean of 38 on the …
  5. Psychology

    Twenty students randomly assigned to an experimental group receive an instructional program; 30 in a control group do not. After 6 months, both groups are tested on their knowledge. The experimental group has a mean of 38 on the test …
  6. psychology

    In an experiment, a control group is different from an experimental group in that the people in the control group: are not exposed to the same treatment of the independent variable. differ in trait variables. do not incur the same …
  7. statistics

    suppost we wanted to test the hypothesis that control a group of cancer patients(group 1) would report higher mean pain ratings than an experimental group recieving special message treatment(group 2). Use the following information, …
  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. Psychology

    Twenty students randomly assigned to an experimental group receive an instructional program; 30 in a control group do not. After 6 months, both groups are tested on their knowledge. The experimental group has a mean of 38 on the test …
  10. English

    I am psueo conducting an experiment on 144 freshmen high school students who are evenly divided into 6 groups. The treatment group are receiving a new instructional strategy that the control group is not receiving. A t-test was conducted …

More Similar Questions