Concept explainers
To find: an approach to decide whether hummingbirds a preference for store-bought food on the basis of their quantity.
Answer to Problem 14PT4
A two-sample T test
Explanation of Solution
Check to see how the knowledge feels. 10 feeders are available: 5 with water / sugar and five food obtained from the store. All are random to avoid bias. The data appears as follows:
Feeder 1: Sugar/Water - # for consumed quantity
Feeder 2: Store bought - # for consumed quantity
Two populations certainly exist. You won't use the Z proportion test because it requires a major
The freedom Chi square test will not be useful when we have just 1 element (sugar or store purchased).
A paired T test is pointless because there is no pairing of tests.
The optimal solution is a two-sample t test, but as this is a small sample, the distribution of population is of crucial significance and is probable or not.
Hence, the correct option is (d)
Chapter 12 Solutions
The Practice of Statistics for AP - 4th Edition
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