Essay
THE NEXT QUESTIONS ARE BASED ON THE FOLLOWING INFORMATION:
The number of hours spent studying by students on Michigan State campus in the week before final exams follows a normal distribution with standard deviation 9.5 hours.A random sample of these students is taken to estimate the population mean number of hours studying.
-How large a sample is needed to ensure that the probability that the sample mean differs from the population mean by more than 2.1 hours is less than 0.05?
Correct Answer:
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P( 
- μ > 2.1)= 0.025 ⇒ P[Z >...View Answer
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Correct Answer:
Verified
- μ > 2.1)= 0.025 ⇒ P[Z >...
View Answer
Unlock this answer now
Get Access to more Verified Answers free of charge
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