Buy Test of Independence Discussion Questions

Buy Test of Independence Discussion Questions
A test of independence may be appropriate if we are examining the relationship between two categorical variables in one population. For this situation what is the population? What is the explanatory variable? What is the response variable?
What are the hypotheses for the Test of Independence? State hypotheses with reference to the context of the scenario.
The spreadsheet of the data looked like this:
Roadside survey data
Driver Gender Alcohol in last
two hours?
Driver 1 M Yes
Driver 2 F No
Driver 3 F Yes
Buy Test of Independence Discussion Questions
Driver 619 M No
We will not use the raw data. Instead we will use the summarized data shown in the table below.
Roadside survey summary
Drank alcohol in last 2 hours? Yes No Totals
Male 77 404 481
Female 16 122 138
Totals 93 526 619
Use StatCrunch to find expected counts, the Chi-square test statistic and the P-value. (directions)
Copy and paste your StatCrunch table into your post. (I WILL ATTACH BELOW)
How many males in the sample are expected to answer yes to question about alcohol consumption in the last two hours? Show how to calculate this expected count and explain what it means relative to the hypotheses.
Explain how we know that this data meets the conditions for use of a chi-square distribution.
State a conclusion at a 5% level of significance. Do you think that the data supports the Oklahoma law that forbids sale of 3.2% beer to males and permits it to females?
As cultural and literary scholar Louis Henry Gates  claims, “Repetition and revision are fundamental to black artistic forms, from painting and sculpture to music and language use.” This “Signifyin(g)” is a dynamic noted throughout hip-hop music because its foundation is rooted in “sampling” music that came before. But the content of rap also expresses a Black experience. Therefore, in your final response this week, discuss three significant subjects or themes that hip-hop artists Signify on in the African American literary tradition as they express their own notions of Blackness in lyrical rap music.

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