2. Researchers at Jackson Hospital asked 40 randomly selected patients about their sleep habits. Sixteen reported sleeping 8 hours or more each night. If there are 700 patients in the hospital, estimate the number of patients who sleep 8 hours or more each night.
A.140
B.160
C.180
D.280
I think its D but I'm not sure
btw its "D" or "280"
To estimate the number of patients who sleep 8 hours or more each night, we can use the proportion obtained from the given sample of 40 patients.
First, calculate the proportion of patients from the sample who sleep 8 hours or more each night:
Proportion = Number of patients sleeping 8 hours or more / Total sample size
Proportion = 16 / 40 = 0.4
Next, estimate the number of patients who sleep 8 hours or more using this proportion and the total number of patients in the hospital:
Estimated number of patients = Proportion * Total number of patients
Estimated number of patients = 0.4 * 700 = 280
So, the estimated number of patients who sleep 8 hours or more each night is 280.
Therefore, the correct answer is option D.