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The respondents to the Montana poll described in Exercise 29 in Chapter 26 were also classified by income level: low (under $20,000), middle ($20,000 $35,000), or high (over $35,000).
Is there any evidence that party enrollment there is associated with income? Test an appropriate hypothesis about this table, and state your conclusions.
Democrat
Republican
Independent
Low
30
16
12
Middle
28
24
22
High
26
38
6
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a regional director responsible for business development in the state of pennsylvania is concerned about the number of
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A real estate company wants to study the relationship between house sales prices and some important predictors of sales prices. Based on data from recently sold homes in the area, the variables
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