Applied Sciences Assignment

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.

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

J IJASP BY BY

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Data Library Organize • New folder ITJ 0

Export Data a oesktop #

!_ Downloads # I I • grades I Name Status 0-,temodified Type Size

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______________________________________________________________________________

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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: MULTI7864TEAM@CAPELLA.EDU

• -- 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.