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. Both groups take the test after studying for two weeks, and their performance on the test is as follows:

Exp Cont
30 30
18 28
20 32
40 42
50 30
40 40
40 42
48 34
56 36
42 24
32 38
36 32
38 20
40 30
34 42
40 40
30 30
50 20
48 20
30 18
16
24
28
22
34
22
30
32
30
30

In this problem, you will determine what the experimenter should conclude.

Using the 5% level of significance (alpha):

A) Determine the null and research hypotheses;
B) Select the correct template (templates for the Single Sample t-test, the Independent Samples t-test, and the ANOVA are included in the tabs that follow this tab);
C) Complete each of the blank cells in the template selected (round to two decimal places).
D) State your conclusion, making reference to the test statistic, the critical value, the effect size, and your hypotheses.

  1. 👍 0
  2. 👎 0
  3. 👁 68
asked by Cyn

Respond to this Question

First Name

Your Response

Similar Questions

  1. 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

    asked by Jennifer on July 31, 2011
  2. 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

    asked by Doris I on February 20, 2010
  3. 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

    asked by Jerry on July 18, 2009
  4. 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

    asked by Anonymous on September 23, 2010
  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

    asked by summer on September 19, 2011
  6. statistics

    Use the following information and data for questions 1-5. A group of researchers hypothesizes that listening to music while studying for an exam influences test scores. They randomly selected 28 subjects and randomly assigned them

    asked by TLC on October 20, 2010
  7. 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

    asked by Anonymous on October 10, 2009
  8. 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

    asked by Anonymous on October 11, 2009
  9. Probablity

    Samir had prepared the problem tests for Stages 1 to 5 of Geometry and Combinatorics for next week but forgot to label which test was for which stage. Since Samir didn't label them, the computer assigned them labels 1 through 5

    asked by Mathslover on May 14, 2013
  10. Math, HELP ME!

    What is the experimental probability of the spinner landing on red? a. 1/2 b. 1/3 c. 1/4 *** What is the experimental probability of the spinner landing on blue? a. 2/7 b. 1/4 *** c. 2/9 There’s a spinner with 8 sections in

    asked by Ginger on February 11, 2016

More Similar Questions