Question

A researcher was interested about the weekly average usage of a local park in San Antonia, Texas. A study was designed to study the relationship between age and number of times residents visited the park each week. They were interested to see if age tends to impact the number of times residents visit the park. The surveyor collected responses information about age and the number of visits per week from 118 residents of San Antonia, Texas. They provided them with an anonymous paper survey to fill out.

1.What are the observational units in this study?

2.Is number of visits per week the explanatory or response variable?

a)Explanatory

b)Response

3.Is age the explanatory or response variable?

a)Explanatory

b)Response

4.Is this an observational study or a randomized experiment?

a)This is a randomized experiment because the researchers want to make cause-and-effect statements.

b)This is a randomized experiment because the residents were randomly assigned the number of times per week to visit the park.

c)This is an observational study because the residents were not randomly assigned what their age is.

d)This is an observational study because the residents were not randomly assigned the number of times per week to visit the park.

5.What is the most concerning type of bias in this study? Why????

a)Response Bias

b)Non-response Bias

c)Selection Bias

6.What is the appropriate scope of inference in this study?

a)Age is associated with number of weekly visits for this sample of 118 San Antonia residents and those similar to.

b)Age causes the number of weekly visits to change in this sample of 118 San Antonia residents and those similar to.

c)Age causes the number of weekly visits to change in the population of San Antonia, TX residents.

d)Age is associated with number of weekly visits for the population of San Antonia, TX residents.

Answer 1

1.What are the observational units in this study?

residents of San Antonia, Texas

2.Is number of visits per week the explanatory or response variable?

b)Response

3.Is age the explanatory or response variable?

a)Explanatory

4.Is this an observational study or a randomized experiment?

c)This is an observational study because the residents were not randomly assigned what their age is.

5.What is the most concerning type of bias in this study? Why????

a)Response Bias

6.What is the appropriate scope of inference in this study?

a)Age is associated with number of weekly visits for this sample of 118 San Antonia residents and those similar to.

THANKS

revert back for doubt

please upvote