Choose the appropriate sampling method for the following scenario. Be sure to consider potential biases that the researcher might need to consider. An EPA contractor needs to test the concentration of a substance in ten samples of the ground water. Seventy samples were already collected from a single source over the course of a week at regular intervals. The contractor wants to test samples evenly over the course of that time frame. A) Random B) Stratified C) Cluster D) Systematic E) Convenience
Choose the appropriate sampling method for the following scenario. Be sure to consider potential biases that the researcher might need to consider. An EPA contractor needs to test the concentration of a substance in ten samples of the ground water. Seventy samples were already collected from a single source over the course of a week at regular intervals. The contractor wants to test samples evenly over the course of that time frame. A) Random B) Stratified C) Cluster D) Systematic E) Convenience
Holt Mcdougal Larson Pre-algebra: Student Edition 2012
1st Edition
ISBN:9780547587776
Author:HOLT MCDOUGAL
Publisher:HOLT MCDOUGAL
Chapter11: Data Analysis And Probability
Section11.4: Collecting Data
Problem 6E
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Choose the appropriate sampling method for the following scenario. Be sure to consider potential biases that the researcher might need to consider. An EPA contractor needs to test the concentration of a substance in ten samples of the ground water. Seventy samples were already collected from a single source over the course of a week at regular intervals. The contractor wants to test samples evenly over the course of that time frame.
A) Random
B) Stratified
C) Cluster
D) Systematic
E) Convenience
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