1. A group of researchers wants to develop an experiment to determine whether a new drug treats cancer effectively. The researchers want to inject the drug in hamsters first to determine whether there are any potential serious side effects. Part A: What are some possible ethical issues to this type of testing? Part B: While conducting the experiment, the researchers find the cancer stops spreading, and they declare the new drug is responsible. Is this a good assumption? Explain.

2.The CEO of a local tech company wants to estimate the proportion of employees that are pleased with the cleanliness of the breakrooms. She considers two methods of obtaining a sample of 600 employees from the 4,700 employees at the company. Part A: To make the process easier, the CEO considers surveying the first 600 employees who enter a company annual conference center. Identify the type of sampling method proposed and discuss why this sampling method might be biased. Part B: The second method the CEO is contemplating involves using a random number generator app to choose a simple random sample of 600 employees from a list of 4,700 employee names. How could she implement this method?

3.Sudzy introduced a new formula for their hair conditioner. They want to conduct an experiment to compare the hair strength of people using the new formula with those using the current formula. Information on the twelve volunteers is shown in the table.

Volunteer Gender Age, year Male 21 2 Female 37 3 Female 30 4 Male 32 5 Male 24 6 Female 22 7 Male 45 8 Female 42 9 Male 42 10 Female 47 11 Male 36 12 Female 23