Name: Tabetha Thompson
1. Correlation, Scatterplots, and Prediction Which relationship is stronger, the relationship between GPA and AGE or the relationship between GPA and SAT score? Be sure to include all appropriate measures and explain and defend your answer. Is this result what you would expect, why or why not?
Correlation between GPA and AGE 0.23
Correlation between GPA and SAT score 0.32
The correlation between GPA and SAT is greater than GPA and AGE. The GPA and SAT score has a strong positive relationship, more so than GPA and AGE score. The GPA and SAT are more correlated to one another than they are to AGE scores.
Create and paste in a scatterplot that compares Final Exam Score and Project Score. What is the correlation
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The project score and final score have a strong inverse because the r-value is closer to 0.
Using the equation from your above scatterplot trendline, predict (estimate) the Project score for a person who gets a final exam score of 82. Show all of your work.
y = 0.2836x + 54.747 y = 0.2836*82 + 54.747 y = 78.002 78.002 = 0.2836*82+54.747
2. Comparing and Describing Data
). For the Final Exam Score and then for the Project Score, calculate the mean, median, mode, range, standard deviation, and variance. (Hint: remember to use the sample std dev and sample variance
Final exam score Project score
Mean 71 75
Median 74.5 76
Mode 89 68
Range 62 56
Standard Deviation 17.7 13.3
Variance 313.882 176.695
Which two numerical measures offer you the best information for comparing performance between these two assignments? Use these two numerical measures to describe and compare student performance between the final exam and the Project.
Mean and standard deviation are the most informative numerical measures when comparing the performance of the final exam scores and the project scores. The mean of each set of scores show that the students have more project scores than final exam scores. The deviation in scores between the students pertains more to the final exam when compared to the project
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Which two numerical measures are best to offer this information? Choose the two numerical measures and use them to describe and compare the variation between the two variables. What does the variation tell you about student performance?
By observing the standard deviation and range we find that the final exam scores have a larger variation of data. The range for the final exam scores is 62 and for the project scores is 56. Because the range for the final exam score is 62, this means there is a difference of 62 between the minimum and maximum. The same concept applies to the project scores.
The standard deviation expresses the variability which is faborable more so to final exams than the project scores. The variation tells us the range of students and their final exam, and project performance.
Who did better on the Final Exam, males or females? Justify your answer using at least THREE (3) numerical measures AND a bar graph. (Hint: Your bar graph will only show the mean and median values for the males and
However, a students’ SAT score indicates if they are college ready; it predicts if a students’ GPA will be high within the first year of college (Walpole 2008).
"Findings from a study released in early February showed that high school grade point averages were better predictors for how students would fare in college than SAT and ACT scores" (Westlund). GPAs better show colleges a student's success in academics than a test. GPAs better expresses a student's potential, determination and commitment to school.
Analysts will input the following information into a simple linear regression model provided in Excel QM using a simple linear regression formula Yi =b_0+ b_1 X_1. In FIGURE 1-3 the highlighted Coefficients are provided. The b_0 is -18.3975 and the b_1 is 26.3479, these coefficients are added to the formula that is represented in figure 1-4.
Our predicted points for our data are, (13, -88.57) and (-2, -29.84). These points show the
These authors highlight two different purposes in assessing students. One purpose of assessment is collecting data and information in order to measure students’ progress and achievement. Teachers also collect data from students’ work in order to give them feedback on their learning. Therefore there are t...
GPA. The survey included one question relating to a high or low GPA. The participants were asked whether they had a (high) GPA of 3.0 or higher, or a (low) GPA lower than 3.0.
Scatter plots are similar to line graphs in that they both use horizontal and vertical axes to plot data points. The closer the data aims to making a straight line, the higher the correlation between the two variables, or the stronger the relationship(MSTE,n.d) The scatter plot above does not have a straight line formation, so that showing that there is not a strong relationship between the two variables of GPA and final.
The argument about whether or not standardized testing accurately measures a student's performance continues to be debated. In this paper, I would like to argue that standardized testing does not accurately measure a student's performance. After looking at various opinions of standardized testing, I will consider the subject matter in regards to external factors that can influence a student's thinking process during a standardized test, such as anxiety, stress, and any other problems the student may be encountering. As a Secondary Mathematics Education major, I will have to prepare my future students for standardized testing. Through reviewing both sides of the debate about standardized testing, I can learn how to focus on the objectives of standardized testing in order to apply them to other aspects of academics and real-life situations.
Another area that high school and college contrast in is my attentiveness during classes. In high school, the instructors were strict about different classroom policies, mainly the cell phone one. It was prohibited for students to have phones in class due to all the distractions it may cause. I would text in class and drift from the lesson. In College, even though it’s more laid back it requires more attentiveness. I try not to text from time to time. I understand now that this may take part in the down fall of my grades. Eventually, being more attentive during class, and remaining consist with the “study time” days will help improve my grades for the most part.
Schooling is a very important aspect in our lives and one must go through many steps to gain a higher education. Two of these steps are high school and college. Although high school and college students aim for the same goal, which is acquiring an education and graduating, the demands, expectations, and social atmosphere extremely contrast.
Now I must compare this data. In order to this, I will do a scatter
of 50 students (25 girls, 25 boys) from year 7. I have data from a
Performance assessment is based on observation and judgment. There are two parts to this assessment, the task a student must complete and the criteria in which to gauge one’s assessment. Performance assessments can take on several forms. Performance assessment can be broken down into more specific elements referred to as product and skills targets. Example of product would be a term paper and skills would be fluently reading aloud (Mislevy, R. J., & Knowles, K. T. 2002).
When it comes to evaluating the academic performance and how to improve it, the factors that are analysed in greater or lesser degree they can influence, they are generally considered, inter alia, socio-economic factors, the extent curricula, teaching methodologies used, the difficulty of using a personalized teaching, the previous concepts that the students have as well as the level of formal thought, however, concerns that "you can have a good intellectual capacity and a good skills and however not" be obtaining proper performance ", faced with the choice and with the prospect that the" academic performance is a phenomenon multifactor is as we began its approach. The complexity of the academic performance starts from conceptualization, sometimes it called fitness school, academic achievement or performance school, but usually the differences of concept is explained only by semantic issues, because usually, in the texts. School life and the teaching experience, are used as
Simple linear regression is a model with a single regressor x that has a relationship with a response y that is a straight line. This simple linear regression model can be expressed as