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Data Analysis Midterm Exam 2024/2025 Questions With Completed & Verified Solution.
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Data Analysis Midterm Exam 2024/2025 Questions With Completed & Verified Solution.
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Data Analysis MidtermIf a business analyst wanted to learn about college students in the state of Texas by having
them complete an online survey. Would the analyst be more likely to analyze a sample or a
population? - ANS Sample
What is the mode of the following numbers?
2 3 4 5 6 7 10 11 11 15 - ANS 11
What type of distribution could have a mean, median, and mode all equal to the number 150? -
ANS Symmetrical Distribution
What type of distribution has the following relationship between mode, median, and mean?
Mode > Median > Mean - ANS Left-Skewed
Identify the chart type for the exhibit: - ANS Box Plot
A new business, CoolIT, sells items to keep you cool when outside. Its products include coolers,
generators, floats, and other water accessories designed to beat the heat. CoolIT has been
spending money on innovative advertising in hopes of increasing its sales revenue. A CoolIT
business analyst ran a regression using 36 months of data using the Excel Data Analysis
Toolpak. The output is shown below. What is the slope of the line? - ANS 163.27
What percentile is the median? - ANS 50th
Which of the following graphs would have a correlation coefficient equal to 0.75? - ANS Graph
What type of test evaluates whether the linear regression model provides a better fit of the data
than a model that contains no independent variables? - ANS Significance F
If the null hypothesis is actually true in the population and you reject the null hypothesis, what
are you doing? - ANS Making a type I error
As compared to raw data, aggregated data gives the analyst the greatest ability to select the
most relevant data. - ANS False
Tableau's biggest advantage over Excel is its specific emphasis on data visualization. - ANS
True
If a dataset has a lot of missing data would most directly concern which aspect of Big Data? -
ANS Veracity
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