In a study examining the relationship between the number of hours of sleep individuals get each night and their self-reported levels of fatigue during the day, a correlation coefficient (r) of -0.70 was observed. What statement about this correlation is true? Group of answer choices There is a strong negative correlation between the hours of sleep and self-reported fatigue. There is a moderate positive correlation between the hours of sleep and self-reported fatigue. There is a strong positive correlation between the hours of sleep and self-reported fatigue. There is a weak negative correlation between the hours of sleep and self-reported fatigue