Answer:
a) Parameter
b) Statistic
c) Statistic
d) Parameter
e) Statistic
Explanation:
For this case we need to remmber that a parameter describe a population of interest is fixed and not changes , and a statistic is a value that describe the sample size selected and can change between samples.
a. There are 100 senators in the 114th Congress, and 54% of them are Republicans.
The 54% here is a parameter since represent the proportion for all the population of interest on this case.
b. In a 2011 Gallup poll of 1008 adults living in the United States, 11% said they are satisfied with the condition of the national economy.
The 11% here is a statistic since we have a random sample and from this sample we calculate the proportion of interest for this case.
c. A survey of hospital records in 120 hospitals throughout the world shows the mean height of 180 cm for adult males.
The mean height of 180 cm is a statistic since we have a survey not all the population of interest
d. The 59 players on the roster of a championship football team have a mean weight of 248.6 pounds with a standard deviation of 44.6 pounds.
The 44.6 pounds is a parameter since we are interested on all the possible players and we have the info for all of them
e. In a random sample of households in the United States, it is found that 51% of the sampled households have at least one high‑definition television.
The 51% here is a statistic since we have a result from a sample not from the population