A researcher has designed a study in order to examine whether keeping a written calendar improves academic performance among male and female college students. She plans to randomly assign 30 first-year students to the calendar condition. Fifteen will be male and fifteen will be female. These students will submit weekly calendars to their teacher in advance of every week for a period of 10 weeks. The control group will include 30 randomly assigned students, half male and half female. These students will not be required to complete or submit a calendar to their instructor. The grade point average of students at the end of the semester will be examined across the groups. A. What factor(s) are being examined? B. How many levels does each factor(s) have? C. State the null and alternate hypotheses that may be examined in this experiment. D. Compute the F-ratios and explain what you will conclude on the basis of the hypothesis test using an alpha level of .05 Male Female n= 15 n= 15 M= 2.9 Calendar N= 60 M= 3.2 G= 79 T= 15 T= 30 Σχ470 SS = 22 SS = 20 Control n= 15 М-24 n= 15 M= 2.6 T= 14 T= 20 SS = 8 SS = 20

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A researcher has designed a study in order to examine whether keeping a written calendar improves academic
performance among male and female college students. She plans to randomly assign 30 first-year students to the calendar
condition. Fifteen will be male and fifteen will be female. These students will submit weekly calendars to their teacher in
advance of every week for a period of 10 weeks.
The control group will include 30 randomly assigned students, half male and half female. These students will not be
required to complete or submit a calendar to their instructor. The grade point average of students at the end of the
semester will be examined across the groups.
A. What factor(s) are being examined?
B. How many levels does each factor(s) have?
C. State the null and alternate hypotheses that may be examined in this experiment.
D. Compute the F-ratios and explain what you will conclude on the basis of the hypothesis test using an alpha level of .05
Male
Calendar
Female
n = 15
n = 15
N= 60
M= 3.2
T= 30
м-2.9
G= 79
T= 15
Ex? = 470
SS = 22
n = 15
SS = 20
Control
n= 15
м-2.4
М- 2.6
T= 14
T= 20
SS = 8
S
20
Transcribed Image Text:A researcher has designed a study in order to examine whether keeping a written calendar improves academic performance among male and female college students. She plans to randomly assign 30 first-year students to the calendar condition. Fifteen will be male and fifteen will be female. These students will submit weekly calendars to their teacher in advance of every week for a period of 10 weeks. The control group will include 30 randomly assigned students, half male and half female. These students will not be required to complete or submit a calendar to their instructor. The grade point average of students at the end of the semester will be examined across the groups. A. What factor(s) are being examined? B. How many levels does each factor(s) have? C. State the null and alternate hypotheses that may be examined in this experiment. D. Compute the F-ratios and explain what you will conclude on the basis of the hypothesis test using an alpha level of .05 Male Calendar Female n = 15 n = 15 N= 60 M= 3.2 T= 30 м-2.9 G= 79 T= 15 Ex? = 470 SS = 22 n = 15 SS = 20 Control n= 15 м-2.4 М- 2.6 T= 14 T= 20 SS = 8 S 20
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