In the following hypothetical scenarios, classify each of the specified numbers as a parameter or a statistic.
a. There are 100 senators in the 114th Congress, and 54% of them are Republicans. The 54% here is a
b. In 1936, Literary Digest polled 2.3 million adults in the United States, and 57% of them said they would vote for
c. Alf Landon for the Presidency. The 57% here is a
d. The survey results from 12 local parks show the mean height of 60 ft for mature oak trees. The mean height of 60 ft is a
e. The 72 employees at ABC company have a mean income of $52,317 with a standard deviation of $36,829. The $36,829 is a
f. In a random sample of business owners in the United States, it is found that 63% of the sampled business owners attend at least one business conference per year. The 63% here is a