STATS FINALS

Process of determining values of parameter.

any statistic whose value is used to estimate an unknown parameter.

Single value that approximates the population parameter.

a range of values that may contain the population parameter with high probability.

is the probability that the interval estimate will contain the parameter, assuming that a large number of samples are selected and that the estimation process on the same parameter is repeated.

Critical z-value of 90%

Critical z-value of 95%

Critical z-value of 99%

When a sample size is less than 30, and the random variable x is approximately normally distributed, it follows a____

The ______ are the number of free choices left after a sample statistic such as 𝑥 is calculated.