CCSS.Math.Content.HSS.IC.B.4

A set of observations that constitute PART of the population.

• Statistic
• Census
• Population
• Sample

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CCSS.Math.Content.HSS.IC.B.4

The process of collecting information/data from the sample.

• Census
• Interview
• Survey
• Questionnaire

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CCSS.Math.Content.HSS.IC.B.4

In a survey of a sample of high school students, 43% said that their mother has taught them the most about managing money.

• parameter
• statistic

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CCSS.Math.Content.HSS.IC.B.4

Are the conditions met? 
A recent poll of 738 randomly selected customers of a major US cell-phone carrier found that 170 of them had walked into something or someone while talking on a cell phone. 

• Yes
• No
• There is not enough data to determine.

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CCSS.Math.Content.HSS.IC.B.4

A preliminary study suggests that 87% of people agree on an issue. How large must your sample size be so you could be within ± 3% of p calculate at 90% confidence?

• 7

• 466

• 5

• 338

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CCSS.Math.Content.HSS.IC.B.4

A research assistant randomly selected 75 undergraduate students from the list of all students enrolled in the psychology-degree program at a large university. She asked each of the 75 students, "How many minutes per day do you typically spend reading?" The mean reading time in the sample was 89 minutes, and the margin or error for this estimate was 4.28 minutes.

Another research assistant intends to replicate the survey and will most attempt to get a smaller margin of error. Which of the following samples will most likely result in a smaller margin of error for the estimated mean time students in the psychology-degree program read per day?

• 40 randomly selected undergraduate psychology-degree program students

• 40 randomly selected undergraduate students from all degree programs at the college

• 300 randomly selected undergraduate psychology-degree program students

• 300 randomly selected undergraduate students from all degree programs at the college

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CCSS.Math.Content.HSS.IC.B.4

Gio surveys 40 Quick Trip employees. He reports that 5 out of 15 fast-food employees are satisfied with their hourly pay rate. What percentage of employees are happy with their pay rate?

• 40%
• 33%
• 12.5%
• 38%

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CCSS.Math.Content.HSS.IC.B.4

600 people were surveyed. How many people rode the stationary bikes that day?

• 150 people
• 120 people
• 90 people
• None of these

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CCSS.Math.Content.HSS.IC.B.4

A recent survey found that out of 400 random American adults, 89% pay their bills on time. The margin of error in this survey was 2%. What is the interval of values in which the truth is likely found?

• 89% - 91%

• 87% - 89%

• 87% - 91%

• 388 - 402

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CCSS.Math.Content.HSS.IC.B.4

The process of collecting data by asking questions

• sample

• respondent

• clinical study

• poll

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CCSS.Math.Content.HSS.IC.B.4