Asked by Alexis Quackenbush on Jun 12, 2024

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A sample is chosen randomly from a population that was strongly skewed to the right.Describe the sampling distribution model for the sample mean if the sample size is small.

A) Skewed right,centre at ?,standard deviation ?/ n\sqrt { n }n
B) Normal,centre at ?,standard deviation σ/n\sqrt { \sigma / n }σ/n
C) There is not enough information to describe the sampling distribution model.
D) Normal,centre at ?,standard deviation ?/ n\sqrt { n }n
E) Skewed right,centre at ?,standard deviation σ/n\sqrt { \sigma / n }σ/n

Sampling Distribution

The chance distribution of a measure found by taking many samples from a given population.

Skewed Right

A distribution of data where the tail on the right side of the distribution is longer or fatter than the left side.

  • Understand the theory of the sampling distribution model across various population distributions.
  • Evaluate the role of sample size in determining the accuracy of a Normal model in skewed population contexts.
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MG
Marissa GalloJun 14, 2024
Final Answer :
A
Explanation :
For a small sample size from a population that is strongly skewed to the right, the sampling distribution of the sample mean will also be skewed to the right. The central limit theorem, which would suggest normality, applies only to larger sample sizes. The mean of the sampling distribution is μ, and the standard deviation is σ/√n, reflecting the distribution of sample means around the population mean with reduced variability compared to the original population.