A certain population has a bimodal distribution with a mean of 58.5 and a standard deviation of 2.5. Many samples of size 25 are randomly selected and their means calculated.
What shape would you expect the distribution of all sample means to have?
bimodal
left skewed
normal
right skewed
uniform
What values would you expect to find for the mean and the standard deviation of the sample means?
Cannot be determined
Mean 58.5, Standard Deviation 0.5
Mean 58.5, Standard Deviation 2.5
Mean 11.7, Standard Deviation 0.5
Mean 58.5, Standard Deviation 12.5
What shape would you expect the distribution of all sample means to have?
bimodal
left skewed
normal
right skewed
uniform
What values would you expect to find for the mean and the standard deviation of the sample means?
Cannot be determined
Mean 58.5, Standard Deviation 0.5
Mean 58.5, Standard Deviation 2.5
Mean 11.7, Standard Deviation 0.5
Mean 58.5, Standard Deviation 12.5