For a biology project, a student wants to research whether the ice at her local coffee shop is clean and free from impurities . She decides to test 15 ice samples from randomly selected coffee drinks . Determine whether her sample is an appropriate , random sample and a good representation of the population . Option #1Yes , her sample is an appropriate , random sample . It is a good representation of the population Option #2 Noher sample is not an appropriate , random sample . It does not represent the whole population
To determine whether the student's sample is appropriate and random, we need to consider a few factors:
1. Random selection: The student mentioned that she selected ice samples from coffee drinks randomly. This is a good approach as it helps to avoid any bias in the selection process.
2. Sample size: The student tested 15 ice samples, which may be considered a small sample size. However, if the coffee shop serves a limited number of drinks with ice, then 15 samples could still provide a good representation of the ice quality.
3. Population representation: To determine if the sample is a good representation of the population, we need to consider whether the 15 ice samples are reflective of the overall ice quality at the coffee shop. Factors such as the types of drinks sampled, the time of day when the samples were collected, and other relevant variables should be taken into account.
Based on the information provided, it seems that the student made a reasonable effort to select ice samples randomly and test them for impurities. However, without more details on the sampling process and the characteristics of the population, it is difficult to definitively determine if the sample is truly representative. It would be advisable for the student to provide more information on how the samples were collected and any potential limitations in the sampling process.