1. Harry is interested in whether owls fly at different speeds during the day and at night. He times how long it takes one group of 25 owls to fly between two set
locations during the day and he times a different group of 25 different owls
between the two locations at night.
a. What type of t-test will Harry use?
One sample
Independent samples
Paired-samples
b. Is the test:
One-tailed positive
One-tailed negative
Two-tailed