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The idea of Spontaneous Generation postulated that  

The bending of light rays as they pass form one medium to another is called refraction.    

A wildlife researcher measured the wingspan of 1029 bald eagles and found that their average wing span was 6.3 ft.

What is the treatment in this study?

Use the following scenario to answer questions 16-18. Carl wants to find out at what age US adults met their current romantic partner. So he writes a post on social media asking for the age at which people met their current partner. He gets 547 responses and determines the average age that these 547 people met their current partners is 27.

The top 100 country hits in 2019.

Is the survey question biased? If yes, reword the question so that it is not.

Determine whether each of the following is a population parameter or a sample statistic. Justify your answer.

Use the following scenario to answer questions 11-12. A city council is interested in determining how satisfied residents are in their local parks. They determine a route through the city that passes by every house. They decide they will knock on doors and ask residents to answer the following question “How do your local parks make your life better?”. They randomly choose to start at the 18th house along the route and then stop at every 50th house after that.

What sampling technique did Carl use?