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

question 63

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. The proportion of sales made in Market Area 1 is 0.40.
iii. The proportion of sales made in Market Area 2 is 0.33.

• 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).