Use the following information for questions:
For a random sample of n = 203 adults in a survey, here is a summary of responses to "How long did you sleep last night?"
-Which of the following provides an approximate 95% confidence interval for the mean hours of sleep the previous night in the population represented by the sample?
A) 6.42$\pm$2×0.11
B) 6.42$\pm$2×$\frac{0.11}{\sqrt{203}}$
C) 6.42 $\pm$ 0.11
D) 6.42$\pm$2×1.56

Question

Use the following information for questions:
 For a random sample of n = 203 adults in a survey, here is a summary of responses to "How long did you sleep last night?" 
-Which of the following provides an approximate 95% confidence interval for the mean hours of sleep the previous night in the population represented by the sample?
A) 6.42$\pm$2×0.11 
B) 6.42$\pm$2×$\frac{0.11}{\sqrt{203}}$ 
C) 6.42 $\pm$ 0.11 
D) 6.42$\pm$2×1.56

Quizplus · Accepted Answer

The Answer of Use the following information for questions:
 For a random sample of n = 203 adults in a survey, here is a summary of responses to "How long did you sleep last night?" 
-Which of the following provides an approximate 95% confidence interval for the mean hours of sleep the previous night in the population represented by the sample?
A) 6.42$\pm$2×0.11 
B) 6.42$\pm$2×$\frac{0.11}{\sqrt{203}}$ 
C) 6.42 $\pm$ 0.11 
D) 6.42$\pm$2×1.56

Use the Following Information for Questions: for a Random ±\pm±

Use the Following Information for Questions:
for a Random $\pm$