Suppose a Random Sample of 1,220 U

question 3

Multiple Choice

Suppose a random sample of 1,220 U.S. adults were asked about their opinion regarding federal spending on infrastructure (i.e. roads and bridges) . Respondents were asked whether federal spending on infrastructure was (a) too low, (b) adequate, or (c) too high. Respondents were classified by income level. Choose the correct hypotheses to test whether there is an association between the response to the question and income level.

• A)H0: There is no difference between the proportions of U.S. adults who responded (a), (b)or (c)to the opinion question. H_a: There is a difference between the proportions of U.S. adults who responded (a), (b)or (c)to the opinion question.
• B)H0: Among U.S. adults, opinions about federal spending on infrastructure and income level are independent. H_a: Among U.S. adults, opinions about federal spending on infrastructure and income level are associated.
• C)H0: Among U.S. adults, opinions about federal spending on infrastructure and income level are associated. H_a: Among U.S. adults, opinions about federal spending on infrastructure and income level are independent.
• D)None of these

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Definitions:

Type A

A personality typology characterized by competitiveness, urgency, and aggression, often associated with a higher risk of stress-related illnesses.

Type B

Personality type characterized by lower stress levels, a relaxed approach to life, and a laid-back attitude, in contrast to Type A personality.

Social Anxiety

A chronic mental health condition characterized by significant anxiety and discomfort in social situations.

Social Anxiety

A chronic mental health condition in which social interactions cause irrational anxiety and fear.