Homework Answers
The SPSS output is:
3 is in the output above.
4. Yes
5. reject
6. We can support the claim since the results are significant.
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Twenty undergraduate students were given t Dependent Samples t-test Badate students were given two versions of...
Twenty randomly selected statistics students were given 15 multiple-choice questions and 15 open-ended questions, all on...
Twenty randomly selected statistics students were given 15 multiple-choice questions and 15 open-ended questions, all on the same material. The professor was interested in determining if students scored higher on the multiple-choice questions. This experiment is an example of ______. Multiple Choice a test of proportions a one-sample test of means a paired t-test a two-sample test of means
Dependent Sample T-Test Researchers were interested in studying whether the type of food eaten influences appearance...
Dependent Sample T-Test Researchers were interested in studying whether the type of food eaten influences appearance perception. Participants were shown 2 pictures of a woman eating either fast food (i.e., a burger with fries) or healthier food (i.e., a salad). The participants were then asked to rate the woman’s level of attractiveness on a scale of 1 (very unattractive) to 7 (very attractive). Given the above information, answer the questions below (assume a level of significance of .05). State the...
Look at the table for the Paired samples test to find your t calculated, df, and...
Look at the table for the Paired samples test to find your t
calculated, df, and significance. Remember that significance level
will appear in the Sig (2-tailed) column. Any value that is smaller
than .05 will be significant at the .05 level or higher. In a
sentence describe the results and report them in APA style,
including r2 and evaluation (you will need to calculate
r2 by hand).
3. What type of error in hypothesis testing is possible given
the...
QUESTION 15 - 19. Ten students who were struggling in a 3rd grade reading class were...
QUESTION 15 - 19. Ten students who were struggling in a 3rd grade reading class were selected to take part in a Reading Is Fun program. Before the program, each student was given a pre-test; four weeks after attending the program students were given a post-test. Use the SPSS output below to study the question, did the Reading Is Fun program significantly increase students' scores? Use a.05 level of significance. Paired Samples Statistics Mean N Std. Deviation Std. Error Mean...
Problem Set 1: The independent-samples t test Research Scenario: A learning psychologist is interested in comparing the success of two different mnemonics (memorization methods) on performance in a me...
Problem Set 1: The independent-samples t test Research Scenario: A learning psychologist is interested in comparing the success of two different mnemonics (memorization methods) on performance in a memory task. He assigns students to two groups, one which learns and uses a language-based rhyming memory technique, and one which learns and uses a visual “method of loci” spatial memory technique. He then administers a memory task to each group of students. The students are scored based on the percentage of...
What was the t-statistic? -5.221 [1 point] What were the confidence intervals? -.846, -.379 [1 point]...
What was the t-statistic? -5.221 [1 point] What were the confidence intervals? -.846, -.379 [1 point] What was the p-value? 0 [1 point] PASTE YOUR SPSS OUTPUT HERE! [2 points] Paired Samples Test Paired Differences t df Sig. (2-tailed) Mean Std. Deviation Std. Error Mean 95% Confidence Interval of the Difference Lower Upper Pair 1 I like statistics! - Hypothetical posttest data on participants rating of how much they like stats -.612 1.049 .117 -.846 -.379 -5.221 79 .000 4....
The test used were a paired t-test using two samples Contnuous AribueGraphs and Foreca tabulason 0oodess...
The
test used were a paired t-test using two samples
Contnuous AribueGraphs and Foreca tabulason 0oodess of e and Chi-Squre Cervelation RgssionnayChi Square Crs Test Sample Samples Control Charti Make Similar Paired t: Recall1, Recall3 Descriptive Statistics sample N Mean StDev SE Mean Recal 72 75278 323260.380 Recal3 72 5.1250 2.56703025 Estimation for Paired Difference Mean StDev SE Mean 95% for 24028 1.3179 0.1553 12.0931, 2.7125) ls mean of (Recoll Recol) Test Null hypothesis Alternative hypothesis H,: μ T Value...
QUESTION 1 "Look at the SPSS output below. Given a two-tailed test and an alpha of...
QUESTION 1 "Look at the SPSS output below. Given a two-tailed test and an alpha of 0.01, what would the appropriate APA-style phrase be?" Independent Samples Test Levene's Test for Equality of Variances t-test for Equality of Means sig Mean Difference Std. Error Difference 95% Confidence Interval of the Mean Lower Upper sig (2-tailed) TAPSPEED 319 582 -2.845 13 .014 -14.00 4.92 -24.63 -3.37 Equal variances assumed Equal variances not assumed -2.927 11.865 013 -14.00 4.78 -24.44 -3.56 O "t...
Thirty undergraduate students were recruited for a research project in a psychology class. The students were...
Thirty undergraduate students were recruited for a research project in a psychology class. The students were randomly assigned to two different groups: Group A saw a moving fictional movie dealing with the death of a young man in battle. Group B saw a documentary on the war in Iraq, including the numbers of soldier killed or wounded. Empathy was then measured with the Interpersonal Empathy Test which had 25 questions scaled from 1 to 4. Thus test scores could range...
Let’s test, with our student data, whether online students spend a different amount of time on...
Let’s test, with our student data, whether online students spend
a different amount of time on their study plan than face-to-face
students. Use an α=0.05. Do not assume population standard
deviations are equal.
Write the probability statement for your p-value with the
correct. (Hint: Double check what the p-value given in the SPSS
output is for, how many tails?)
Make your decision.
Draw conclusions.
Using all of the previous Real World problems, write a brief
description of what you have...
Look at the table for the Paired samples test to find your t
calculated, df, and significance. Remember that significance level
will appear in the Sig (2-tailed) column. Any value that is smaller
than .05 will be significant at the .05 level or higher. In a
sentence describe the results and report them in APA style,
including r2 and evaluation (you will need to calculate
r2 by hand).
3. What type of error in hypothesis testing is possible given
the...
QUESTION 15 - 19. Ten students who were struggling in a 3rd grade reading class were selected to take part in a Reading Is Fun program. Before the program, each student was given a pre-test; four weeks after attending the program students were given a post-test. Use the SPSS output below to study the question, did the Reading Is Fun program significantly increase students' scores? Use a.05 level of significance. Paired Samples Statistics Mean N Std. Deviation Std. Error Mean...
The
test used were a paired t-test using two samples
Contnuous AribueGraphs and Foreca tabulason 0oodess of e and Chi-Squre Cervelation RgssionnayChi Square Crs Test Sample Samples Control Charti Make Similar Paired t: Recall1, Recall3 Descriptive Statistics sample N Mean StDev SE Mean Recal 72 75278 323260.380 Recal3 72 5.1250 2.56703025 Estimation for Paired Difference Mean StDev SE Mean 95% for 24028 1.3179 0.1553 12.0931, 2.7125) ls mean of (Recoll Recol) Test Null hypothesis Alternative hypothesis H,: μ T Value...
QUESTION 1 "Look at the SPSS output below. Given a two-tailed test and an alpha of 0.01, what would the appropriate APA-style phrase be?" Independent Samples Test Levene's Test for Equality of Variances t-test for Equality of Means sig Mean Difference Std. Error Difference 95% Confidence Interval of the Mean Lower Upper sig (2-tailed) TAPSPEED 319 582 -2.845 13 .014 -14.00 4.92 -24.63 -3.37 Equal variances assumed Equal variances not assumed -2.927 11.865 013 -14.00 4.78 -24.44 -3.56 O "t...
Let’s test, with our student data, whether online students spend
a different amount of time on their study plan than face-to-face
students. Use an α=0.05. Do not assume population standard
deviations are equal.
Write the probability statement for your p-value with the
correct. (Hint: Double check what the p-value given in the SPSS
output is for, how many tails?)
Make your decision.
Draw conclusions.
Using all of the previous Real World problems, write a brief
description of what you have...
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