Question 1
The American Milk Association is claiming that men drink more milk than women. If a sample of 45 men drink on average 26 oz of milk a day with a standard deviation of 5oz. A sample of 40 women drink on average 24oz of milk a day with a standard deviation of 3oz. At the .10 significance level, Using Calculated z value of 2.26. State the p-value.
a. 0.0119
b. 0.0238
c. 0.4884
d. 0.10
Question 2
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? What is the null hypothesis?
_____________Region A______Region B
Sample Size____1000__________1500
Sales__________400___________500
A. Proportion (pie)A = Proportion (pie)B
B. Proportion (pie)A ≠ Proportion (pie)B
C. Proportion (pie)A ≤ Proportion (pie)B
D. Proportion (pie)A ≥ Proportion (pie)B