The amount of time to complete a particular exam is believed to have a mean of 52 minutes and a standard deviation of 4.8 minutes. A sample of 36 students was selected and their times to finish the exam recorded.
Is the sampling distribution of the sample mean approximately normal?
______________
What is the mean?
______________
What is the standard deviation?
______________
What is the probability this sample produces an average of less than 50 minutes?
______________
If the sample mean is actually 50 minutes, is it likely that = 52?
______________
Explain.
________________________________________________________

Question

The amount of time to complete a particular exam is believed to have a mean of 52 minutes and a standard deviation of 4.8 minutes. A sample of 36 students was selected and their times to finish the exam recorded.
Is the sampling distribution of the sample mean approximately normal?
______________
What is the mean?
______________
What is the standard deviation?
______________
What is the probability this sample produces an average of less than 50 minutes?
______________
If the sample mean  is actually 50 minutes, is it likely that  = 52?
______________
Explain.
________________________________________________________

Quizplus · Accepted Answer

The Answer of The amount of time to complete a particular exam is believed to have a mean of 52 minutes and a standard deviation of 4.8 minutes. A sample of 36 students was selected and their times to finish the exam recorded.
Is the sampling distribution of the sample mean approximately normal?
______________
What is the mean?
______________
What is the standard deviation?
______________
What is the probability this sample produces an average of less than 50 minutes?
______________
If the sample mean  is actually 50 minutes, is it likely that  = 52?
______________
Explain.
________________________________________________________

The Amount of Time to Complete a Particular Exam Is