To Compare the Effect of Weather on Sales of Soft $\neq$

question 44

Multiple Choice

To compare the effect of weather on sales of soft drinks, a soda manufacturer sampled two regions of the country with the following results. Is there a difference in sales between the 2 regions?
i. The alternate hypothesis is p_a - p_b $\neq$ 0.
ii. Using the 1% level of significance, the critical value is $\pm$ 2.58.
iii. The z-statistic is 3.40.

• A) (i), (ii), and (iii) are all correct statements.
• B) (i) and (ii) are correct statements but not (iii).
• C) (i) and (iii) are correct statements but not (ii).
• D) (ii) and (iii) are correct statements but not (i).
• E) (ii) is a correct statement but not (i) and (iii).

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Definitions:

Lowest Risk

A term used to describe the situation or option that has the minimal chance of causing harm or negative outcomes.

Diathesis-Stress Model

A psychological theory that explains behavior as both a result of genetic and biological predispositions and life stressors.

Asthmatic Reactions

An adverse response in individuals with asthma, such as wheezing or shortness of breath, triggered by various factors including allergens and exercise.

Genetic Vulnerability

An inherited predisposition or higher likelihood of developing certain diseases or disorders due to specific genetic factors.