To Compare the Effect of Weather on Sales of Soft

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) If α = 0.01 and the z-statistic were calculated to be -1.96, your decision would be to fail to reject

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) .