answersLogoWhite

0

If the sample size is large (>30) or the population standard deviation is known, we use the z-distribution.
If the sample sie is small and the population standard deviation is unknown, we use the t-distribution

User Avatar

Wiki User

16y ago

What else can I help you with?

Trending Questions
What does remain static mean? What correlation coefficients represents a situation in which there is no relationship between variables? What is the probability of drawing a ace of diamond from a deck of 52 cards? If you roll a fair six sided number cube. What is the probability of rolling and eight? Why is it that there is a jagline in a histogram? What does a line graph in which the data points do not fall along a straight line mean? Where can I find statistics on average single family rentals in East Lansing (for example: what to expect on how much rent for or a typical house of 3 bedroom 2 bath). Thank you? Is the variance of a group of scores the same as the squared standard deviation? Three fair coins are tossed at the same time What is the probability that one of the coins will show heads and the other two will show tails? What is the market return for an asset with a required return of 16 and a beta of 1.10 when the risk free rate is 9? How many outcomes are possible each time a player takes a turn by spinning the spinner and tossing an1to 6 cube? What does sparse mean? What is the advantage of allowing the eluent front to rise near the top of the TLC sheet rather than stopping when only half way up? What is one purpose of the data table? When would a variance be labeled as favorable? What does it mean if you got your period twice last month but not the next month? How is mean absolute deviation used in life? Where is the vertical axis on a bar graph? Which measure of central tendency does a circle graph most clearly display? When a coin is tossed 9 times in a row what is the probability that heads comes up 9 times?