A statistical experiment can be almost any act of observation as long as the outcome is uncertain

A chi-square goodness-of-fit-test is to be performed to see if data fit the Poisson distribution. There are 5 categories, and the parameter ? must be estimated. How many degrees of freedom should be used?

A) 5 B) 4 C) 3 D) 2

Which of the following is a turn-around document?

a. remittance advice b. sales order c. purchase order d. payroll check