Using Central Limit Theorem to Estimate Sample Means in a Stats Class"

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SUMMARY

The discussion focuses on applying the Central Limit Theorem (CLT) to estimate how many students in a statistics class would have sample means less than 23.25. The class consists of 180 students, each generating 64 random numbers from a spinner selecting values between 1 and 50, resulting in a class mean of 27 and a standard deviation of 20. The appropriate formula for this scenario is \(\frac{\sqrt{n}(\overline{x} - \mu)}{\sigma}\), where \(n = 180\). This formula allows for the calculation of the probability of obtaining sample means below the specified threshold.

PREREQUISITES
  • Understanding of Central Limit Theorem (CLT)
  • Knowledge of statistical mean and standard deviation
  • Familiarity with random sampling techniques
  • Basic proficiency in statistical formulas and calculations
NEXT STEPS
  • Study the application of Central Limit Theorem in different sampling scenarios
  • Learn how to calculate probabilities using Z-scores
  • Explore the implications of sample size on the distribution of sample means
  • Investigate the use of statistical software for simulating random samples
USEFUL FOR

This discussion is beneficial for statistics students, educators teaching statistical methods, and anyone interested in understanding the practical applications of the Central Limit Theorem in estimating sample means.

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Homework Statement



Each of 180 students in an evening stats and methods class is asked to generate 64 random numbers with a "spinner" that selects numbers from 1 to 50, and then compute the mean of the 64 numbers. The mean for the class as a whole is 27 with a standard deviation of 20. How many of the students would be expected to have their sample means less than 23.25?


Homework Equations





The Attempt at a Solution



Would I use this form of the CLT: \frac{\sqrt{n}(\overline{x} - \mu)}{\sigma}
 
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No one has responded, so I think I'll weigh in - yes, that's the statistic to use, with n = 180.
 
That's what I thought; thanks.
 

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