To Compare the Effect of Weather on Sales of Soft

question 18

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 null hypothesis is pa - pb > 0.
ii. The alternate hypothesis is pa - pb ≠ 0.
iii. The pooled estimate of the population proportion is 0.36.

• 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:

Flooring Planks

Long, thin boards used as a fundamental component in flooring systems, traditionally made of wood but now also available in various materials like vinyl or laminate.

Char

Partially burnt organic material or the process of partial combustion that leaves a substance with increased carbon content.

Gas Chromatography Injector

A component of a gas chromatography system that introduces the sample into the flow path of the carrier gas.

Vaporized

Turned into vapor, typically through the application of heat, changing from a liquid or solid state into a gaseous state.