Questions: F - STAT 200 - 013/014 - BASIC STATISTICAL PRACTICE Esther Benitez 10/05/24 6:44 PM Exam 1 Question 16 of 33 This test: 33 point(s) possible This question: 1 point(s) possible Resume later Submit test estion list Question 12 Question 13 Question 14 Question 15 Question 16 An article in a reputable journal discussed several data collection methods for testing the efficacy of a new program designed to reduce drug-related crimes in a city. The sample consisted of 56 "hot spots"-areas of the city with a high crime rate but not necessarily a high drug crime rate. In Method 1, the new program will be implemented in half of the 56 hot spots (selected at random); the othier half will not implement the program (the "no treatment" group). In Method 2, the 56 hot spots will be divided into four groups based on the level of drug crimes - very high drug crime rate ( 10 hot spots), high rate ( 8 hot spots), moderate rate ( 26 hot spots), and low rate ( 12 hot spots). In each group, half the hot spots will be randomly assigned the new crime prevention program and the other half no treatment. For both methods, after several weeks the crime rates in the hot spots where the program was implemented will be compared with those with no treatment. Complete parts a through d below. a. Identify the data collection method for Method 1. Choose the correct answer below. A. Random sample B. Published source C. Designed experiment D. Observational study b. Identify the data collection method for Method 2. Choose the correct answer below. A. Random sample

F - STAT 200 - 013/014 - BASIC STATISTICAL PRACTICE Esther Benitez 10/05/24 6:44 PM Exam 1 Question 16 of 33 This test: 33 point(s) possible This question: 1 point(s) possible Resume later Submit test estion list Question 12 Question 13 Question 14 Question 15 Question 16 An article in a reputable journal discussed several data collection methods for testing the efficacy of a new program designed to reduce drug-related crimes in a city. The sample consisted of 56 "hot spots"-areas of the city with a high crime rate but not necessarily a high drug crime rate. In Method 1, the new program will be implemented in half of the 56 hot spots (selected at random); the othier half will not implement the program (the "no treatment" group). In Method 2, the 56 hot spots will be divided into four groups based on the level of drug crimes - very high drug crime rate ( 10 hot spots), high rate ( 8 hot spots), moderate rate ( 26 hot spots), and low rate ( 12 hot spots). In each group, half the hot spots will be randomly assigned the new crime prevention program and the other half no treatment. For both methods, after several weeks the crime rates in the hot spots where the program was implemented will be compared with those with no treatment. Complete parts a through d below. a. Identify the data collection method for Method 1. Choose the correct answer below. A. Random sample B. Published source C. Designed experiment D. Observational study b. Identify the data collection method for Method 2. Choose the correct answer below. A. Random sample
Transcript text: F - STAT 200 - 013/014 - BASIC STATISTICAL PRACTICE Esther Benitez 10/05/24 6:44 PM Exam 1 Question 16 of 33 This test: 33 point(s) possible This question: 1 point(s) possible Resume later Submit test estion list Question 12 Question 13 Question 14 Question 15 Question 16 An article in a reputable journal discussed several data collection methods for testing the efficacy of a new program designed to reduce drug-related crimes in a city. The sample consisted of 56 "hot spots"-areas of the city with a high crime rate but not necessarily a high drug crime rate. In Method 1, the new program will be implemented in half of the 56 hot spots (selected at random); the othier half will not implement the program (the "no treatment" group). In Method 2, the 56 hot spots will be divided into four groups based on the level of drug crimes - very high drug crime rate ( 10 hot spots), high rate ( 8 hot spots), moderate rate ( 26 hot spots), and low rate ( 12 hot spots). In each group, half the hot spots will be randomly assigned the new crime prevention program and the other half no treatment. For both methods, after several weeks the crime rates in the hot spots where the program was implemented will be compared with those with no treatment. Complete parts a through d below. a. Identify the data collection method for Method 1. Choose the correct answer below. A. Random sample B. Published source C. Designed experiment D. Observational study b. Identify the data collection method for Method 2. Choose the correct answer below. A. Random sample
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Solution

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Solution Steps

To solve the given questions, we need to identify the type of data collection methods used in the described scenarios.

a. For Method 1, since the program is implemented in randomly selected hot spots and compared with a control group, it is a designed experiment.

b. For Method 2, the hot spots are divided into groups based on existing conditions and then randomly assigned treatments, which also makes it a designed experiment.

Step 1: Identify the Data Collection Method for Method 1
  • In Method 1, the program is implemented in randomly selected hot spots, and the results are compared with a control group.
  • This setup involves manipulation and control, characteristic of a designed experiment.
Step 2: Identify the Data Collection Method for Method 2
  • In Method 2, hot spots are divided into groups based on existing conditions and then randomly assigned treatments.
  • This also involves manipulation and control, indicating a designed experiment.

Final Answer

  • For part (a), the answer is \(\boxed{\text{C. Designed experiment}}\).
  • For part (b), the answer is \(\boxed{\text{C. Designed experiment}}\).
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