In each of the following statements, identify the boldface number as the value of a population parameter or a sample statistic. a. Some political observers claim that state senators spend too much...

In each of the following statements, identify the boldface number as the value of a population parameter or a sample statistic.

a. Some political observers claim that state senators spend too much time addressing colleagues about pending legislation. The mean length for a random sample of speeches was 23.7 minutes.

b. A consulting firm prepared a report from census data and concluded that the proportion of single-family homes in a certain county is 0.52.

c. In a random sample of adults, the mean number of blinks per day was 22,037.

d. A ballet instructor found the variance of the number of round-trip miles (to practice) traveled by all students was 150.76.

e. A random sample of people who snowboard at least five times per year found the mean number of injuries per person per year to be 3.4.

f. In a survey conducted by the U.S. Postal Service, 80% of respondents supported the proposed new six-day package, five-day delivery schedule.