Chapter Nine

Ch 9  

5 cards   |   Total Attempts: 188
  

Cards In This Set

Front Back
Bias and Variability of Statistics
It's unbiased if the mean is equal to the true value of the parameter being estimated.
The variability of a statistic is described by the spread of its sampling distribution, its design and size.
Mean and Standard Deviation of a Sampling Distribution for a Proportion
Answer 2
Mean=p
Condition for Using Normal Approximation of a Sampling Distribution for a Proportion
Answer 3
Ensures that normal calculations are accurate enough for most statistical purposes.ensures that normal calculations are accurate enough for most statistical purposes.ensures that normal calculations are accurate enough for most statistical purposes.ensures that normal calculations are accurate enough for most statistical purposes.
Mean and Standard Deviation of a Sampling Distribution for a Mean
Answer 4
Mean=population mean
Using Normal Approximation of Sampling Distribution for a Mean
The sampling distribution is normal if the population is normal and also if it follows the central limit theorem, which is when there are more than 40 observations, the sampling distribution is normal.