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 pa - pb ≠ 0
Ii) Using the 1% level of significance, the critical value is ±2.58.
Iii) The z-statistic is 3.57.
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 alternate hypothesis is pa - pb ≠ 0
Ii) Using the 1% level of significance, the critical value is ±2.58.
Iii) The z-statistic is 3.57.
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

The Answer of 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 pa - pb ≠ 0
Ii) Using the 1% level of significance, the critical value is ±2.58.
Iii) The z-statistic is 3.57.
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).

To Compare the Effect of Weather on Sales of Soft