Applied Sciences Assignment
tretaylor
2 years ago
5
files (3)Assignment.pdf
cf_7864_data_set_instructions1.pdf
cf_histograms_descriptive_statistics1.pdf
Assignment.pdf
Part 1
Create two histograms for visual interpretation using the following variables:
Variable/Definition
Lower Up: Lower division =1; Upper division = 2
Final: Final exam: number of correct answers
Create two histograms and paste them into your Word document:
● A histogram for lower division students. ● A histogram for upper division students.
Briefly describe what a visual inspection of this output tells you about the shape of the distributions.
Part 2
Create a descriptives table to assess measures of central tendency and dispersion using the following variables:
Variable/Definition
GPA: Previous grade point average
Quiz3: number of correct answers
Create a descriptives table and paste it into your Word document.
Under the table:
● Report the mean, standard deviation, skewness, and kurtosis for GPA and quiz3.
● Briefly describe what skewness and kurtosis tell you about these data with regard to normality.
Submit both sections of your assignment as an attached Word document.
cf_7864_data_set_instructions1.pdf
7864 Data Set Instructions The 7864 data set is fictional data. The data represents a teacher’s recording of student demographics and academic performance across three sections of their course. Each course section consists of about 35 students (N = 105).
The data set is located on grades.jasp. You can download grades.jasp from the 7864 assignments instructions area. It will then open in JASP. There are 21 variables in the course data set. Refer to the table below.
Scale of JASP variable Definition Values measurement
id Student identification number Nominal
lastname Student last name Nominal
firstname Student first name Nominal
1 = woman; 2 = man; 3 = binary/non-conforminggenderidentity Student gender identity Nominal 4 = prefer not to disclose
1 = Native American; 2 = Asian; ethnicity Student ethnicity 3 = Black; 4 = White; 5 = Nominal
Hispanic
1 = freshman; 2 = sophomore; year Class rank Ordinal
3 = junior; 4 = senior
lowup Lower or upper division 1 = lower; 2 = upper Nominal
section Class section
gpa Previous grade point average Scale
extcr Did extra credit project? 1 = no; 2 = yes Nominal
review Attended review sessions?
quiz1 Quiz 1: number of correct answers
quiz2 Quiz 2: number of correct answers Scale
Nominal
1 = no; 2 = yes Nominal
Scale
quiz3 Quiz 3: number of correct answers Scale
quiz4 Quiz 4: number of correct answers Scale
1
Scale of JASP variable Definition Values measurement
quiz5 Quiz 5: number of correct answers Scale
Final exam: number of correct final Scale answers
total Total number of points earned Scale
percent Final percent Scale
grade Final letter grade (A, B, C, D, F) Nominal
Passed or failed the course? 1 = passfail Nominal pass; 0 = fail
2
- 7864 Data Set Instructions
cf_histograms_descriptive_statistics1.pdf
J IJASP BY BY
•··
• •
• JASP � X
l!!r - + Recent Files Recent Folders
Save Computer
X Save As
OSF -E- � ., 1' - «Desktop > JASP , C p
Export Results
Data Library Organize • New folder ITJ 0
Export Data a oesktop #
!_ Downloads # I I • grades I Name Status 0-,temodified Type Size
0 AJASPfil~ contai... 8KB
Sync Data
Close
Preferences
About
Open Cancel
______________________________________________________________________________
______________________________________________________________________________
Histograms and Descriptive Statistics
Part 1: Histograms
Download grades.jasp from Week 2 Assignment Instructions.
Open grades.jasp in JASP. To do this, start JASP. Select the blue “sandwich” in the top left corner. Select “Open.” Select “Computer.”
Browse to the saved file. Select "Open.”
SCREENSHOTS TAKEN FROM JASP version 16.
QUESTIONS? EMAIL: [email protected]
• -- lid -1. T - Descriptives T-Tests ANOVA Mixed Models Regression Frequencies
... Descriptive Statistics 0 0 0 0 ' id H &, lastname
Variables
� &, firstname
I gen deride ntity
I ethnicity
year • • low up •
I section
' gpa
A extcr
A review
I quiz1
I quiz2
I quiz3
I quiz4
I quiz5 Split
, final � .. Transpose descriptives table
� � S1atistics
� Basic plots
� Customizable plots
� Tables
Part 1 asks for two histograms. Select the Descriptives option from the menu bar and a new window appears.
- -. Descriptive Statistics
' id &, lastn ame
&, firstn ame
ge nderi dentity
ethni city
e -. Descriptive Statistics
�
�
�
-
Split
Vari ables
fin al
0 0 0 0
0 0 0 0
II
Select the final variable. Then select the arrow key to move it over into the Variables box.
Select the lowup variable. Select the arrow key to move it over into the Split box.
e ..- Descriptiv,e Statistics
' id lastn ame·
firstrname,
g:e rn deride rntity
ethnicity
yea:r
rll section
' .. .. gpa
e,xtcr
rn11iew
Q,llll i1z.1
q,uiiz:2
q,UJ ii23,
Q,llll i1z.4
I q,uiiZ.5
, total
, pe,rrnrnt
Trans pose descriptives table
• Basic plots
II Distri bution plots
Variables
final
Split
lowup
0 0 0 0
Select Basic plots. Select Distribution plots. Your histograms will appear in a new window.
Distribution Plots •
final•
lower division
(/)
c ::, 0
<.)
•
upper division •
fi nal
Descriptives T-Tests ANOVA Mixed Models Regression Frequencies
,, Descriptive Statistics
' " & iastname f;, firstname
111 genderidentity
111 ethnicity
111 year
A lowup
1d section
' gpa A extcr A review
111 quiz.1
111 quiz2
111 quiz3
111 quiz4
111 quiz5 , final
Transpose desCfiptivestable
� Statistics
� Bas ic plots
� Cu stomizable plots
� Tables
JI
0 0 0 0 Yariables
Split
fi nal /4
______________________________________________________________________________
Copy and paste the histogram output into a new Word document. Below the output, briefly describe what a visual inspection of this output
tells you about the shape of the distributions.
Part 2: Descriptive Statistics
Part 2 asks for descriptive statistics. Select the Descriptives option from the menu bar and a new window appears.
•
•
'Y Descriptive Statistics
A id
A lastname
A firstname
A genderidenlity
A ethnicity
111 year
A lowup
A section
A extcr
A review
, quiz1
, quiz2
, quiz3
, quiz4
, quiz5
, final
'Y Descriptive Statistics
,. id
A lastname
A firstname
A genderidenlity
A ethnicity
1 year
A lowup
A section
A extcr
A review
, quiz1
, quiz2
�
�
�
�
! Variables !
Split
! variables !
gpa
Split
0 0 0 0
..
0 0 0 0
Select gpa. Select the arrow to move gpa to the Variables box.
Select quiz3. Select the arrow to move quiz3 to the Variables box.
- ,.. Descriptiv•e Statistics
,. id
lastrn ame
ti rrstrn ame
A g:e Iii de rri de nrtity
A ettmicity
1 year
,. IO,WLIIP
A se cti orn
A e•xtCJ
A review
' Q;Llli21 , q;u iz2
quiz4
' Q;Lll iz5 ti rn al
, total
, perce rnt
Transpose descri ptives table
• .Statiisti cs
0
� Vari ables
' gpa , q;Lll i,z3
Split
0 0 0 0
11
Select the Statistics button. New options appear.
Select Mean, Standard Deviation, Kurtosis, and Skewness. (Deselect other options).
-
T Statistics
Sample size
Valid
Missing
Central tendency
Mode
II Mean
Dispersion
Quantiles
Quartiles
Cut points for: 4
- les:
DistribS,
II Skewness
~ Kurtosis
. WilKtest
S.E. mean II Std. deviation
Coefficient of variation MAD
MAD robust IQR
Variance Range
Minimum Maximum
Descriptive Statistics
Me;_n St:L Oeviati:::m Sk P.'o\ln~~~
Ul>i::I U1Ji.!3
st.1 ~rror m !•m ::;i.\'n?.S~ I Kunos1s St l . Error oi Kunos!S
equal groups
Copy and paste the descriptive statistics output into the Word document. Under the table, report the mean, standard deviation,
skewness, and kurtosis of gpa and quiz3. Briefly describe what skewness and kurtosis tell you about these data with regard to normality.
-
Distribution Plots "
final ,.
lower division
<I)
c ::, 0
0
upper division "'
final
Oes,criptive Statistics
Des criplive Stalisfics
Mean Std. Deviation Skewness Std. Enor of Skewness Kurtosis Std. Enor of Kurtosis
g,pa quiz3
final
Your homework should look like this page. Upload for grading.
7864 u02a1
Learner Name
Briefly describe what a visual inspection of this output tells you about the shape of the
distributions.
Report the mean, standard deviation, skewness, and kurtosis for GPA and quiz3. Briefly
describe what skewness and kurtosis tell you about these data with regard to normality.
- Histograms and Descriptive Statistics
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