Question

1. you are interested in learning what percentage of adult us citizens regularly stream movies online. you conduct a survey of n = 800 us citizens and find that 68% regularly stream movies online.

a) state the parameter being estimatedin words and symbols.
b) what is the best estimatesample statistic for this value?
c) what is the proper notation for the sample statistic in part b?

Explanation:

Step1: Identify the parameter

The parameter of interest is the proportion of all adult US - citizens who regularly stream movies online. In symbols, we use $p$ to represent the population proportion.

Step2: Determine the best estimate

The best estimate of the population proportion $p$ is the sample proportion. Given that in a sample of $n = 800$ US - citizens, 68% regularly stream movies online, the sample proportion $\hat{p}=0.68$.

Step3: State the notation for the sample statistic

The proper notation for the sample proportion (the sample statistic in part b) is $\hat{p}$.

Answer:

a) The parameter being estimated is the proportion of all adult US - citizens who regularly stream movies online. Symbol: $p$.
b) The best estimate (sample statistic) is 0.68.
c) The proper notation for the sample statistic is $\hat{p}$.