8-27 Unit Test 1 - Experimental Design

What sampling technique is used in this study.

Every 3rd person walking by is asked their opinion on a certain topic.

• Convenience

• Systematic

• Cluster

• Random

In a local community, 3 different Publix stores are chosen randomly, out of all 15 Publix stores in the community, and the salaries of all 3 employees in those 3 stores are used as data. Is an example of what sampling technique?

• Stratified

• Cluster

• Random

• Systematic

Tags

CCSS.HSS.IC.A.1

CCSS.HSS.IC.B.3

What sampling technique is used in this study?

A researcher randomly selects and interviews twenty male and twenty female flight attendants about their safety.

• Convenience

• Stratified

• Cluster

• Random

Tags

CCSS.HSS.IC.A.1

CCSS.HSS.IC.B.3

A researcher for an airline interviews all of the passengers on a flight he happens to be taking home from a recent trip.

• Random

• Census

• Systematic

• Cluster

A community college student interviews everyone in his biology class to determine the percent of students that own car.

• Systematic

• Convenience

• Random

• Stratified

Tags

CCSS.HSS.IC.B.3

CCSS.HSS.IC.B.4

The Florida Department of Motor Vehicles is interested in the percentage that increase their speed when they see a yellow light. They survey a random sample of 1000 drivers that hold a valid Florida Driver's Licenses.

What is the parameter of the study?

• percentages of drivers who increases their speed when they see a yellow light

• percentage of drivers who speed

• all drivers with a valid Florida Driver's License

• 1000 drivers with a valid Florida Driver's License

The mean income of a full time employees in Florida is $44, 299. We draw a random sample of 100 employees and find that their mean income is $40, 749. Select the term that correctly completes the statement:

" All employees in Florida" represent the?

• sample statistics

• population parameter

The mean income of a full time employees in Florida is $44, 299. We draw a random sample of 100 employees and find that their mean income is $40, 749. Select the term that correctly completes the statement:

"The 100 randomly selected employees" represent the?

• Population Parameter

• Sample Statistics

The mean income of a full time employees in Florida is $44, 299. We draw a random sample of 100 employees and find that their mean income is $40, 749. Select the term that correctly completes the statement:

" The mean income of $40, 749" represent the?

• Conclusion

• Data Set

• Average

A local newspaper wishes to estimate the proportion of all Floridians who support a new state law. A phone survey indicated that 380 out of 1,000 respondents supports the new law. Based on the results, what is an estimate of the associated population proportion? Round your answer to the nearest whole number.

• 38

• 380

• 1000

• 3.8