Essay
THE NEXT QUESTIONS ARE BASED ON THE FOLLOWING INFORMATION:
Times spent studying by students in the week before final exams follow a normal distribution with standard deviation 9 hours.A random sample of 5 students was taken in order to estimate the mean study time for the population of all students.
-What is the probability that the sample mean is more than 3.2 hours below the population mean?
Correct Answer:
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P( 
- μ < -3.2)= P(Z...View Answer
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Correct Answer:
Verified
- μ < -3.2)= P(Z...View Answer
Unlock this answer now
Get Access to more Verified Answers free of charge
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