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3 years ago

7

Question...Sleep is known to affect student grades. Kirsten is conducting a study in a local high school using two treatments on

two groups of students. One group will nap one hour in an eight-hour school day and another will nap 30 minutes in an eight-hour school day. What group would be the best control for the study?
Options...
A third group that takes a one-hour nap or a 30-minute nap randomly each day

A third group that shortens the school day to six hours

A third group in which no naps occur

A third group that splits the day with a 30-minute nap in the morning and a 30-minute nap in the afternoon

A third group in which each student chooses either a 30-minute nap or a one-hour nap

1 answer:

OLga [1]3 years ago

4 0

Answer:

c

Step-by-step explanation:

a third party group in which no naps occur

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Substitutethe values

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According to Pythagoras thereon

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Substitute the values

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