Validated case study · Data Analytics

Humach Marketing: Campaign Efficiency

Compare channels with cost-aware metrics and avoid confusing volume with efficiency.

Download mini_marketing.csvUse Python, SQL, Excel or your preferred workflow unless a task specifies otherwise.
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campaign_idchannelspendimpressionsconversionsrevenue
C001Social61377008.7722.1
C002Email726940013.31210.3
C003Display8391110012.41227.6
C004Search9521280015.91192.5
C005Social10651450013.31103.9
C006Email11781620019.41765.4
C007Display12911790016.51633.5
C008Search14041960020.61545.0
C009Social15172130023.01909.0
C010Email16302300025.52320.5
C011Display17432470020.62039.4
C012Search18562640025.21890.0
C013Social1969610027.62290.8
C014Email2082780036.53321.5
C015Display2195950024.72445.3
C016Search23081120029.92242.5
C017Social24211290032.32680.9
C018Email25341460042.63876.6
C019Display26471630033.83346.2
C020Search27601800034.52587.5
C021Social28731970036.93062.7
C022Email29862140048.74431.7
C023Display599231009.7960.3
C024Search7122480012.9967.5
C025Social8252650010.3854.9
C026Email938620015.71428.7
C027Display1051790013.81366.2
C028Search1164960017.61320.0
C029Social12771130020.01660.0
C030Email13901300021.71974.7
C031Display15031470017.91772.1
C032Search16161640022.21665.0
C033Social17291810024.62041.8
C034Email18421980032.82984.8
C035Display19552150022.02178.0
C036Search20682320026.92017.5
C037Social21812490029.32431.9
C038Email22942660038.83530.8
C039Display2407630031.13078.9
C040Search2520800031.52362.5
C041Social2633970033.92813.7
C042Email27461140044.94085.9
C043Display28591310035.23484.8
C044Search29721480041.13082.5
C045Social585165007.3605.9
C046Email6981820011.91082.9
C047Display8111990011.11098.9
C048Search9242160014.61095.0
48 rows6 columnsmini_marketing.csv
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Analyse → validate → submit.

Numeric and decision tasks are auto-checked. Written reasoning is checked for completeness and key ideas, then included in your local submission report.

0/5 validated
01

How many campaigns are in the dataset?

02

What is total campaign spend?

03

Which channel has the highest aggregate ROAS in this miniature dataset?

04

Which metric directly captures revenue earned per unit of spend?

05

Explain why the channel with most conversions may not be the best channel.

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HumachLearn stores no server-side data. Submission creates a portable JSON report containing your answers, validation state and timestamp.