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ECON3310001.1251 Lab Seven

Numerical

Identifying Over- and Under-Represented Industries in Nebraska In this task, we will analyze industry representation in Nebraska by comparing its share of employment in each industry to its share of the total U.S. population (3%). If Nebraska has more than 3% of national employment in an industry, it is over-represented; if it has less than 3%, it is under-represented. To perform this analysis, we will focus on 2012 and use industry employment data at the most detailed level (IndustryCodeLength = 6). SQL Approach To compute the representation deviation for each industry: Innermost Subquery Calculate total employment by industry across the entire country (GROUP BY IndustryCode). Intermediate Join Join the state-level employment data (StateData) for Nebraska with total U.S. industry employment to compute Nebraska’s share of employment per industry. Ensure that only IndustryCodeLength = 6 is considered. Final Calculation Compute Nebraska’s deviation from 3% (0.03) in absolute terms using: ∣ Nebraska Employment in Industry Total U.S. Employment in Industry − 0.03 ∣ Question Once you compute the deviation for all six-digit industries in Nebraska in 2012, answer: Which industry (six-digit NAICS code) deviates the most from the expected 3% representation in Nebraska? Additional Hints Filter for Nebraska (StateShort = 'ne') when computing the state-level employment. Use ABS() in SQL to ensure you measure deviation in both directions (over- and under-representation). Sort the results in descending order by absolute deviation to identify the industry with the largest discrepancy. Click on the dataframe in the Environment panel (upper right) to explore the results visually.

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This item describes a data analysis task and then asks a numerical question about which six-digit industry deviates the most from a 3% representation in Nebraska. Since the provided data for answer options is empty, we cannot evaluate specific choices. The following reasoning explains how to determine the correct industry, and what to consider when answer options are absent or when you’re constructing your own options. First, outline the objective in your own words: for each six-digit NAICS industry, compare Nebraska’s share of national employment in that industry to 3%, and take the absolute deviation. The formula is: deviation = |Neb......Login to view full explanation

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