L01ab Submit - HW 1 SRA 365

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School

Pennsylvania State University *

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Course

365

Subject

Statistics

Date

Feb 20, 2024

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pdf

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Uploaded by Jordanmchampion

L01ab: Submit - HW 1 Due Jan 21 at 11:59pm Points 20 Questions 12 Available Jan 15 at 12am - Jan 23 at 11:59am Time Limit None Instructions This quiz was locked Jan 23 at 11:59am. Attempt History Attempt Time Score LATEST Attempt 1 55 minutes 15.71 out of 20 Score for this quiz: 15.71 out of 20 Submitted Jan 21 at 4:51pm This attempt took 55 minutes. Please be sure to read L01 a and b before attempting this assignment. The Global Terrorism Database (GTD) contains a repository of terrorist events that have taken place across the world. It is developed and maintained by the National Consortium for the Study of Terrorism and Responses to Terrorism at the University of Maryland. The variables in the dataset are: • gtd_id: Used to indicate the ID # of an incident. • year: This field contains the year in which the incident occurred. In the case of incident(s) occurring over an extended period, the field records the year when the incident was initiated. • month: This field contains the number of the month in which the incident occurred. In the case of incident(s) occurring over an extended period, the field records the month when the incident was initiated. • extended: Variable with two levels. ◦ "Yes" The duration of an incident extended more than 24 hours. L01ab: Submit - HW 1: SRA 365 - SP24 -001 - WC https://psu.instructure.com/courses/2313011/quizzes/4976409?module_... 1 of 8 2/8/2024, 8:50 PM

◦ "No" The duration of an incident extended less than 24 hours. • Inc_crit (Inclusion Criteria): Variable with three levels. This variable records which of the inclusion criteria (in addition to the necessary criteria) is met ◦ Criterion 1: Political, economic, religious, or social goal (CRIT1) ◦ Criterion 2: Intention to coerce, intimidate or publicize to a larger audience(s) (CRIT2) ◦ Criterion 3: Outside international humanitarian law (CRIT3) • attack_type: This field records the general method of attack and consists of the following categories: ◦ Assassination ◦ Hijacking ◦ Kidnapping ◦ Barricade ◦ Incident ◦ Bombing/Explosion ◦ Armed Assault ◦ Unarmed Assault ◦ Facility/Infrastructure Attack ◦ Unknown • total_num (Total Number of Fatalities): This field stores the number of total confirmed fatalities for the incident. The number includes all victims and attackers who died as a direct result of the incident. • prop_dmg (Extent of Property Damage): Variable with four categories that describe the extent of the property damage: ◦ 1 = Catastrophic (likely > $1 billion) ◦ 2 = Major (likely > $1 million but < $1 billion) ◦ 3 = Minor (likely < $1 million) 1 / 1 pts Question 1 What level of measurement is "gtd_id"? L01ab: Submit - HW 1: SRA 365 - SP24 -001 - WC https://psu.instructure.com/courses/2313011/quizzes/4976409?module_... 2 of 8 2/8/2024, 8:50 PM

nominal Correct! Correct! ordinal interval ratio 0 / 1 pts Question 2 What level of measurement is "year"? nominal orrect Answer orrect Answer ordinal interval ou Answered ou Answered ratio 1 / 1 pts Question 3 What level of measurement is "inc_crit"? nominal Correct! Correct! ordinal binary L01ab: Submit - HW 1: SRA 365 - SP24 -001 - WC https://psu.instructure.com/courses/2313011/quizzes/4976409?module_... 3 of 8 2/8/2024, 8:50 PM

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ratio 1 / 1 pts Question 4 What level of measurement is "extended"? nominal orrect Answer orrect Answer ordinal binary ou Answered ou Answered ratio 1 / 1 pts Question 5 What level of measurement is "total_num"? nominal ordinal interval ratio Correct! Correct! 1 / 1 pts Question 6 L01ab: Submit - HW 1: SRA 365 - SP24 -001 - WC https://psu.instructure.com/courses/2313011/quizzes/4976409?module_... 4 of 8 2/8/2024, 8:50 PM

What level of measurement is "prop_dmg"? nominal ordinal Correct! Correct! interval ratio 1 / 1 pts Question 7 You decide to run a statistical test to evaluate whether the number of total confirmed fatalities for an incident (total_num) can be predicted by the type of attack (attack_type). In this test, "total_num" would be your: independent variable dependent variable Correct! Correct! 1 / 1 pts Question 8 You decide to run a statistical test to evaluate whether the extent of property damage (prop_dmg) can be predicted by the number of total confirmed fatalities for an incident (Total Number of Fatalities). In this test, "total_num" would be your: independent variable Correct! Correct! dependent variable L01ab: Submit - HW 1: SRA 365 - SP24 -001 - WC https://psu.instructure.com/courses/2313011/quizzes/4976409?module_... 5 of 8 2/8/2024, 8:50 PM

1.71 / 3 pts Question 9 Select the variable(s) in the list that would be considered categorical: NOTE: Select all that apply. gtd_id orrect Answer orrect Answer year orrect Answer orrect Answer month orrect Answer orrect Answer extended Correct! Correct! inc_crit Correct! Correct! attack_type Correct! Correct! total_num prop_dmg Correct! Correct! 4 / 4 pts Question 10 Calculate the standard deviation for the following set of numbers using the equation described in Lesson 01 . {89, 82, 68, 72, 58, 77, 87, 59, 9, 59} You will need to round your final answer to 2 decimal places . L01ab: Submit - HW 1: SRA 365 - SP24 -001 - WC https://psu.instructure.com/courses/2313011/quizzes/4976409?module_... 6 of 8 2/8/2024, 8:50 PM

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23.09 Correct! Correct! 23.09 orrect Answer orrect Answer 3 / 3 pts Question 11 Calculate the variance for the following set of numbers using the equation described in Lesson 01 . {46, 51, 54, 82, 73, 52, 53, 43, 2, 59} You will need to round your final answer to 2 decimal places . 445.61 Correct! Correct! 445.61 orrect Answer orrect Answer 0 / 2 pts Question 12 Calculate the sum of squared residuals (SS) for the following set of numbers using the equation described in Lesson 01 . {56, 47, 78, 64, 75, 87, 73, 42, 72, 43} You will need to round your final answer to 2 decimal places . 562.1 ou Answered ou Answered 2,268.1 orrect Answer orrect Answer L01ab: Submit - HW 1: SRA 365 - SP24 -001 - WC https://psu.instructure.com/courses/2313011/quizzes/4976409?module_... 7 of 8 2/8/2024, 8:50 PM

Quiz Score: 15.71 out of 20 L01ab: Submit - HW 1: SRA 365 - SP24 -001 - WC https://psu.instructure.com/courses/2313011/quizzes/4976409?module_... 8 of 8 2/8/2024, 8:50 PM