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Learning resources brought to you by Tucson Unified's Curriculum and Instruction

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Probability and Statistics- Week Four

Printable Version of this lesson board in PDF format

High School Probability and Statistics

Week 4 April 27-May 1

Weekly Packet

Math Objectives: Students will be able to: 

  • use significance tests to assess provided data about proportions 

Independent Practice 

Practice Set: with answers included 

Khan Academy:  
Writing Hypotheses 
Identifying the population and the sample 

 Self-Check / Formative Assessment 
In 2005, researchers studied the physical fitness of adolescents aged 12 to 10 years.  Of the 2205 randomly tested, 750 showed a poor level of cardiovascular fitness. Does this sample provide support that more than 30% of adolescents have a low level of cardiovascular fitness? 
Identify population 
Identify sample 
Create the null hypothesis 
Create the alternate hypothesis 

 

Key Vocabulary / Formulas/ Things to Remember

Population: a set of similar items or events which is of interest for some question or experiment 
Sample: a set of individuals or objects collected or selected from a population 
Confidence Interval: defines a range of values that you can be ___% certain contains the population parameter. 
Alternative Hypothesis: the claim about the population that we are trying to find evidence for (Ha) 
Null Hypothesis: the claim being tested (H0) pˆ  is the sample proportion 

Parameter: numbers that describe a population 
Statistic: number calculated from a sample 
Confidence Level: refers to the percentage of all possible samples that can be expected to include the true population parameter 
P-value: The probability, computed assuming that H0 is true, that the sample outcome would be as extreme or more extreme than the observed outcome. The smaller the P-value, the stronger the evidence against H0 provided by the data. 

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