Are the following statements true or false?
(a) Statistical inference uses the results of an experiment to make inferences on some properties of an unknown underlying probability distribution.
(b) The margin of error in a political poll is based on the standard error of the estimate obtained.
(c) An experimenter collects some data from a process and uses it to estimate some properties of the process. The experimenter is using statistical inference, not probability theory, because the known data is used to make inferences about the unknown parameters of the process.
(d) The standard error of a point estimate provides an indication of its accuracy.