Answer :
Answer: a. Number of visitors
b. average([tex]\mu[/tex]) amount spent per person by visitors to the park
c. Yes , we know the average amount spent per person byvisitors to the park. It is $28 per person.
Step-by-step explanation:
- A population is a group of all members according to the researchers's subject of interest.
- A parameter is a number that gives the measure of a factor generated from population (for ex Population mean ([tex]\mu[/tex]) , population proportion (p) ).
- A sample is a finite subset of the population that represents the population in an analysis.
- A statistic is a number that gives the measure of a factor generated from sample (for ex sample mean ([tex]\overline{x}[/tex]) ,sample proportion ([tex]\hat{p}[/tex]) ).
For the given situation, A researcher wishes to estimate the average amount spent per person by visitors to a theme park.
Population by researcher's point of interest : "Number of visitors"
Parameter of interest : "average([tex]\mu[/tex]) amount spent per person by visitors to the park"
Since he takes a random sample of forty visitors and obtains an average of $28 per person.
Here , sample : forty visitors
And average amount spent per person by visitors to the park from sample :
[tex]\overline{x}= [/tex] $28 per person.
The sample means is the best point-estimate for the population mean.
So , the best point-estimate for average amount spent per person by visitors to the park here is $28 per person.
The population of interest is:
- Number of visitors
The parameter of interest is:
- Average amount spent on each person by visitors in the park
Based on the sample, the way know the average amount spent per person by visitors to the park is:
- $28 per person
Population of Interest
This refers to the select sample which a researcher tries to draw conclusions from.
Read more about population of interest here:
https://brainly.com/question/14043898