Reference no: EM132831865
Question 1. One Sample T-test
Suppose that as a military psychologist you know that the population of sonar operatorshas a mean identification rate of 82 targets out of 100. You have just developed a newsonar training system that, you claim, will increase the number of targets correctlyidentified. The identification rate of the 15 trainees with your program is as follows:
88,79,92,87,82,86,91,80,87,83,91,85,82,89,94
Using the data from these 15 trainees, is their identification rate significantly betterthan that of the population trained in the traditional manner? Do not just show our dataoutput, answer the question.
Question 2. T-Test for Independent Samples
The following represent the number of fish caught in a stream by some anglers. Theseanglers tested the claim that a new Zeta bait would facilitate the catching of fish ascompared to the old Aquiline bait. Two groups of proficient anglers were randomlyassigned to fish with the baits for 2 hours each. Each group caught 13 fish.
Acuiline: 10,16,18,19,14,8,9,5,7,11,15,6,4
Zeta: 2,4,1,2,0,1,2,10,18,4,7,20,7
Assuming that you have been hired to determine the outcome of this experiment, whatconclusions would you draw about the baits? Do not just show our data output, answerthe question.
Enter the following data into your SPSS software, analyze the data and submit your output for grading. Do not just show your data output, answer the question.
Question 3. Mr. Dick Scrooge feels that students who have full scholarship should do betterbecause they have more time to study. To test his theory, he asks you to do a study of theeffect of student scholarship on academic performance. You randomly assign 15 freshmen tothree scholarship schemes: Full, Partial, and No Scholarship. At the end of the first year, youassess their performance.
Full Scholarship: 3.9; 3.7; 4.0; 3.5; 3.9; 3.9; 3.9; 4.0; 3.5; 3.9; 3.9; 3.5
Partial Scholarship: 3.0; 3.3; 2.9; 2.8; 2.5; 3.0; 3.3; 2.2; 3.8; 2.2; 2.8; 3.0
No Scholarship: 1.5; 2.0; 2.4; 2.0; 1.8; 3.2; 2.9; 1.4; 2.0; 1.4; 2.4; 1.9
Using the GPA listed above, does the type of scholarship given to a student significantly affects student performance?
Question 4. This is a social network problem. A two-factor study is conducted comparingFacebook users with non-users for middle school, high school, and college students. Forconsistency across groups, grades were converted into six categories, numbered 0-5 from lowto high. Use a two-factor ANOVA with a=.05 to evaluate mean differences. The results arepresented in the following matrix:
|
|
MIDDLE SCHOOL
|
HIGH SCHOOL
|
COLLEGE
|
|
NON-FACTBOOK USER
|
3
|
|
5
|
|
5
|
|
5
|
5
|
4
|
|
5
|
2
|
2
|
|
3
|
4
|
5
|
|
FACEBOOK USER
|
5
|
|
1
|
|
1
|
|
3
|
2
|
0
|
|
2
|
3
|
0
|
|
2
|
2
|
3
|
a) Is the main effect for Facebook use significant?
b) Is the interaction effect significant?
c) Does a difference exist for all three grade levels?
d) Does the difference, if it does exist, appear to increase as the students get older?