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. Using the 1% level of signiﬁcance, the critical value is ±2.58.
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).

Question

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. Using the 1% level of signiﬁcance, the critical value is ±2.58.
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).

Quizplus · Accepted Answer

(i), (ii), and (iii) are all correct statements.

To Compare the Effect of Weather on Sales of Soft