Flashcards in Test 3 Deck (15):
For the normal distribution there is___mode and the median and mean___
The standard normal distribution assumes U=__and o=___
The T distribution is identical to the normal distribution except it does not assume o=___
The X2 distribution is used to approximate the populations___,___
When the population standard deviation is known, for a confidence interval we use?
When the population standard deviation is unknown for a confidence interval we use?
Any confidence interval u assumes the population is normally distributed or
Any confidence interval u assumes the population is normally distributed or (If N>30 is not present)
None of the above
margin of error
In general for a confidence interval as the level of confidence decreases?
the width interval decreases
In general for a confidence interval as the level of confidence increases?
The width interval increases
Amoung other limits the central limit theorem tells us
sample size increase sample approaches normal
For any event X, ___