homework quiz determine if the following represents a simple random sample, a random sample,...

Homework QuizDetermine if the following represents a

simple random sample, a random sample, neither, or both.

You split the class into two halves, flip a coin to choose a half, and then select everyone from that half.

Homework Questions

What’s on the test?Matching definitions (vocab dictionary)Determine the sampling techniqueConsider context, source, sampling

method, conclusionParameter vs. StatisticQuantitative vs. CategoricalDiscrete vs. ContinuousObservational Study vs. ExperimentSimple Random vs. RandomCritical Thinking

College Prep Statistics

Chapter 1 Dart Throw Review

Dart Throw ReviewStudents will be split up into groups of four.Each student will be assigned a letter A-D.All students are responsible for backing up their

answers on their own sheet of paper.When a letter is called, that group member must

present their work to a teacher.If the student is correct and has shown all work,

then they will put a tally mark next to their team name.

If the student is incorrect, they will no receive a tally mark and the group must correct their work.

After a few rounds of questions, students will throw darts on the board for points.

Dart Throw Scoring Board•-20 points if the dart does not land inside the square or if it falls on the ground•No points if the dart lands in the white region

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Question 1

Stratified

Define the following as either convenience, cluster, systematic, or

stratified sampling:

Population Split into boys/girls

Sample

Question 2Define the following as either

convenience, cluster, systematic, or stratified sampling:

Systematic

Question 3Define the following as either

convenience, cluster, systematic, or stratified sampling:

Cluster

Question 4Determine whether the information below represents a random sample,

simple random sample, both, or neither.

1. Ms. Pobuda stands outside of Rm. 183 and asks the first 10 OHS students to pass by what their favorite band is.

2. Ms. Pobuda assigns every student at OHS a number and randomly selected 10 of those numbers. Ms. Pobuda then asks those 10 students what their favorite band is. 1. Neither 2. Both

Question 5

1. Discrete 2. Discrete3. Continuous

You and your friends go to Portillos. Determine whether the information

below represents discrete or continuous data.

1. The number of hotdogs sold on one given day.

2. The number of cups of soda sold on one given day.

3. The amount of soda poured into cups sold on one given day.

Question 6Determine whether the information

below represents quantitative or categorical data.

1. The number of dogs families in Oswego

own. 2. The types of dogs families in Oswego

own. 3. The dogs’ microchip identification

numbers. 1. Quantitative 2. Categorical 3. Categorical

Question 7

1. Parameter 2. Statistic

Determine whether the information represents a parameter or a statistic.

1. 2 of the 50 states in the United States do not use the “majority rule” for their Electoral College votes.

2. Mr. Llorens surveyed 5 OHS math teachers and all 5 thought Mr. Llorens should rename his dog “Kyle”.

Question 8 Gallup, a private polling company that conducts its own independent polls recently conducted a pet ownership study in the U.S. In order to obtain these results, Gallup conducted

telephone interviews. Here is the information they found.

1. What is the context of the numbers presented?

2. Who was the source of the data? Are they

reliable?3. What sampling method was used to

obtain this data?4. What conclusions can

you draw from this data?

Question 9

The wording of the question is biased and tends to encourage negative responses. The sample size of 20 is too small. Finally, survey respondents are self-selected instead of being selected by the newspaper.

The Newport Chronicle ran a survey by asking readers to call in their response to this question: “Do you support the development of atomic weapons that could kill millions of innocent people?” It was reported that 20 readers responded and 87% said “no” while 13% said “yes.” Identify 3 major flaws.

Dart Throw Scoring Board•-20 points if the dart does not land inside the square or if it falls on the ground•No points if the dart lands in the white region

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Homework

Study for the Chapter 1 Test!