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

Zed is making a centerpiece for his dining room table by putting sand in a cube-shaped vase. the vase is 0.25 meters in length, width, and height. he bought 25 kg of sand. assume the density of dry sand is 1,602 kgm3. what is the volume of the sand that zed purchased? the volume of the sand is approximately m3. enter your answer as the number that correctly fills in the blank in the previous sentence. if necessary, round your answer to six decimal places, like so: 42.536475