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
Contingency Table
A contingency table can be defined as the visual representation of the relationship between two or more categorical variables that can be evaluated and registered. It is a categorical version of the scatterplot, which is used to investigate the linear relationship between two variables. A contingency table is indeed a type of frequency distribution table that displays two variables at the same time.
Binomial Distribution
Binomial is an algebraic expression of the sum or the difference of two terms. Before knowing about binomial distribution, we must know about the binomial theorem.
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