Reading Quiz for Week 7

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MIS0855: Data Science

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According to Moss (2021), 179 assets were unintentionally included in a purchases contract due to... *

1 point

Rows were pasted into the wrong spreadsheet

Hidden rows becoming visible when the spreadsheet was converted to a PDF file

A formula computed the wrong threshold for approving an asset

The spreadsheet wasn't password protected

According to Redman (2013), which is NOT a cause of bad data? *

1 point

Everyone is invested in getting the data right

Users of data create "workarounds" instead of addressing root causes

People creating the data don't understand how others will use it

Creators and users of data have poor communication

How are data stored in a relational database? (Rosemblum and Dorsey 2013) *

1 point

Different types of data are stored in different tables

All data are stored as one big dataset

The databases can only record one type of data

The same data are replicated to several places

What is the purpose of primary and foreign keys in a relational database? (Rosemblum and Dorsey 2013) *

1 point

Keys help encrypt the data

Keys show the most important data

Keys help link different data together

Keys are used to validate the data

According to Tableau, if data are incorrect, the analysis may... *

1 point

Still produce correct results

Produce results that look as if they were correct

Not produce anything

Need to be redone

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