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Key Concepts Quiz 2.1
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2.1 Hypotheses and Sources of Data
Hypotheses, primary and secondary data (19.0K)

1
Does the altitude above sea level of the venue affect high jump records in the Olympic games? State a hypothesis for this question.
A)Altitude above sea level increases high jump records.
B)Altitude above sea level decreases high jump records.
C)Altitude above sea level does not affect high jump records.
D)All of these are possible hypotheses for this question.
2
David hypothesizes that lowering ticket prices will increase attendance at the school musical production. What is the opposite of this hypothesis?
A)Lowering ticket prices will not increase attendance at the school musical production.
B)Lowering ticket prices will decrease or cause no change to attendance at the school musical production.
C)Lowering ticket prices will decrease attendance at the school musical production.
D)Either a) or b) can be used as the opposite of the given hypothesis.
3
Which of these is a primary source of data?
A)Albert counted the number of chickens that hatched from each batch of eggs received from various farms.
B)Beatrice consulted an encyclopedia to find how many hurricanes had reached Ontario in the last 20 years.
C)Charles visited a sports site on the Internet to determine the top five goal scorers in the NHL.
D)All of these are primary sources of data.
4
Which of these is a secondary source of data?
A)Dariah counted the number of street lights in her subdivision to determine how much electricity was needed to operate them.
B)Enos bought 3 tennis balls from each of 4 manufacturers, and collected data from bounce tests.
C)Faith read an article in a consumer magazine comparing repair costs of several different models of car.
D)All of these are secondary sources of data.





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