Question:: A botanist is studying a newly identified soybean disease.

The botanist collected soil samples from all of the soybean fields in randomly selected states to see if there were significant differences the sulfur levels in fields with and without the disease.

1)What is the population?

a)all US botanists

b)all US diseases

c)all US soil

d)all US soybeans

2)What is the sample?

a)all US botanists

b)all US diseases

c)all US soil

d)all US soybeans

3)What is the variable of interest?

a)number of soybeans with disease

b)height of soybeans

c)amount of sulfur the coil

d)number of fields with effected soybeans

e)state with effected soybeans

4)How was the sample selected?

a)census

b)cluster sampling

c)simple random sampling

d)convenience sampling

e)stratified sampling

5)What method was used to collect the data?

a)Experiment

b)observational study

c)survey

d)simulation

6)Is the variable qualitative or quantitative?

a)qualitative

b)quantitative

7)Is the variable continuous or discrete?

a)continuous

b)discrete

Question::

Choose the best method for choosing a sample and the best method to collect data. Remember to think about the definitions and the pros and cons of each before choosing your answers.

-A researcher is trying to determine the migratory patterns of Great White sharks. Census or Sampling method:

a)census

b)cluster sampling

c)simple random sampling

d)convenience sampling

e)stratified sampling

Collection method:

a)Experiment

b)observational study

c)survey

d)simulation

2)There are 30 students in your class and you want to know their birthdays.

Census or Sampling method:

a)census

b)cluster sampling

c)simple random sampling

d)convenience sampling

e)stratified sampling

Collection method:

a)Experiment

b)observational study

c)survey

d)simulation

3)A company wants to examine their products for paint defects.

Census or Sampling method:

a)census

b)cluster sampling

c)simple random sampling

d)convenience sampling

e)stratified sampling

Collection method

a)Experiment

b)observational study

c)survey

d)simulation

:

4)A new restaurant has been open for three months and wants feedback from it's customers. The do not have much time or money to invest in getting the data.

Census or Sampling method:

a)census

b)cluster sampling

c)simple random sampling

d)convenience sampling

e)stratified sampling

Collection method:

a)Experiment

b)observational study

c)survey

d)simulation

5)A dog food claims to make dogs coats shiner and healthier looking. A researcher wants to test the claims.

Census or Sampling method:

a)census

b)cluster sampling

c)simple random sampling

d)convenience sampling

e)stratified sampling

Collection method:

a)Experiment

b)observational study

c)survey

d)simulation

6)The Department of Homeland Security wants to test a computer virus that it has developed to combat hackers.

Census or Sampling method:

a)census

b)cluster sampling

c)simple random sampling

d)convenience sampling

e)stratified sampling

Collection method:

a)Experiment

b)observational study

c)survey

d)simulation