Question

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 from 25 to 100. The researchers wanted to determine whether there was a difference in empathy between those students who saw a moving fictional account of a death; and those students who got reality-based information. The empathy scores are below: Group A: 67 98 68 77 82 77 69 80 84 92 77 87 84 72 79 Group B: 48 69 82 55 59 52 49 75 78 66 48 57 61 59 70 Use SPSS to analyze the data. Use the t test for independent groups. What did you learn from the test?

Write in words what the results of the t test means. Report the mean empathy score for each group, the standard deviation for each group, the value of t and the p value. The correct way to report a t test is as follows: t(value for degrees of freedom)=value of t, p=value attained. Attach an output file to the discussion showing the results of your t test. You can copy and paste into a Word document if you would like.

Answer #1

1) A research study was conducted to examine the efficacy of
studying in groups. Students were randomly assigned to one of two
groups: a single person group (individual studying), a group that
had three study partners. After four weeks of studying, the
students were given an exam. The raw scores on the exam are below.
Construct a hypothesis test.
Group 1 Group 2
78 82
87 79
76 82
65 83
92 81
78 90
77 89
88 79
85...

A research study was conducted to examine the efficacy of
studying in groups. Students were randomly assigned to one of two
groups: a single person group (individual studying), a group that
had three study partners. After four weeks of studying, the
students were given an exam. The raw scores on the exam are below.
Construct a hypothesis test.
Group 1 Group 2
78 82
87 79
76 82
65 83
92 81
78 90
77 89
88 79
85 83...

A group of Psychology students was interested in writing a paper
for their research class
concerning the difference between girls and boys and their
friendships. They determined
to study primary school aged children on the playgrounds of
schools. They hypothesized
that girls would pursue narrower, more intense friendship groups
than boys, that is, they
would interact with fewer other children than would the boys on
average. They selected
30 boys and 30 girls to watch at their schools. On average...

A group of students take a math test. To test if sleep has an
effect on their performance, they get 8 hours of sleep for 2 weeks
each night, and then take the same math test again. Their scores
are listed below. Did sleep have a significant different on their
math test performance? (alpha=0.05)
Math Test 1
Math Test 2
84
86
95
95
53
70
96
98
82
86
79
75
68
78
93
95
Find the sum of...

I have solved everything except for the t-statistic and
p-value
Final test scores for a sample of 20 students in a managerial
accounting class are shown
(a) At α = .05, is there a difference in
the population median scores on the two tests? Fill in the right
side of the worksheet below. (Round your Rank, R+, and R–
answers to 1 decimal place. Negative values should be indicated by
a minus sign.)
Student
Test 1
Test 2
d
|d|...

An administrator said that he believes that 50% of all students
have more than 60 credit hours. Use the data found in the column
labeled “More than 60 credit hours attained” to answer this
question. “No” means that the student has not attained more than 60
credit hours. “Yes” means that the student has attained more than
60 credit hours.
a. Write the claim in symbolic form
b. Write the null and alternative hypothesis in symbolic
form
c. State the...

7.
(07.02 MC)
Oscar, a yoga instructor at Yoga for You, is interested in
comparing levels of physical fitness of students attending a nearby
high school and those attending a local community college. He
selects a random sample of 210 students from the high school. The
mean and standard deviation of their fitness scores are 82 and 14,
respectively. He also selects a random sample of 210 students from
the local community college. The mean and standard deviation of
their...

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