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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

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