题目
ECON3310001.1251 Lab Seven
数值题
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.
查看解析
标准答案
Please login to view
思路分析
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登录即可查看完整答案
我们收录了全球超50000道考试原题与详细解析,现在登录,立即获得答案。
类似问题
Two tables may be joined:
Question at position 51 We can calculate the cumulative sum for each date using the following SQL statement: SELECT t1.date, t1.precip AS 'daily precip', SUM(t2.precip) AS 'cum. precip' FROM rainfall AS t1 INNER JOIN rainfall AS t2 ON t2.date >= t1.date GROUP BY t1.date ORDER BY t1.date;TrueFalse
Question at position 57 We can calculate the cumulative sum for each date using the following SQL statement: SELECT t1.date, t1.precip AS 'daily precip', SUM(t2.precip) AS 'cum. precip' FROM rainfall AS t1 INNER JOIN rainfall AS t2 ON t2.date >= t1.date GROUP BY t1.date ORDER BY t1.date;TrueFalse
Question at position 57 We can calculate the cumulative sum for each date using the following SQL statement: SELECT t1.date, t1.precip AS 'daily precip', SUM(t2.precip) AS 'cum. precip' FROM rainfall AS t1 INNER JOIN rainfall AS t2 ON t2.date >= t1.date GROUP BY t1.date ORDER BY t1.date;TrueFalse
更多留学生实用工具
希望你的学习变得更简单
加入我们,立即解锁 海量真题 与 独家解析,让复习快人一步!