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Cold nights Is there an association between time of year
Chapter 7, Problem 27E(choose chapter or problem)
Cold nights Is there an association between time of year and the nighttime temperature in North Dakota? A researcher assigned the numbers 1–365 to the days January 1–December 31 and recorded the temperature at 2:00 a.m. for each. What might you expect the correlation between DayNumber and Temperature to be? Explain.
Questions & Answers
QUESTION:
Cold nights Is there an association between time of year and the nighttime temperature in North Dakota? A researcher assigned the numbers 1–365 to the days January 1–December 31 and recorded the temperature at 2:00 a.m. for each. What might you expect the correlation between DayNumber and Temperature to be? Explain.
ANSWER:Step 1 of 4
We start in winter, so for low dates, the temperature is also low.
As the dates progress to spring and summer, we expect the temperatures, in general, to rise.
Reaching autumn, we expect the temperatures to fall again towards a level they had in January.