Anewspaper conducted a statewide survey concerning the 1998 race for state senator. the newspaper took a srs of n=1400 registered voters and found that 720 would vote for the republican candidate. let p represent the proportion of registered voters in the state who would vote for the republican candidate.
we test

h0: p=.50
ha: p> .50

(a) what is the z -statistic for this test?

(b) what is the p-value of the test?

Saline iv fluid bags cost $64.20 for 24, 1000 ml bags from one supplier. another supplier sells 500 ml bags for $2 each. the hospital uses about 10,000, 1000 ml bags each month. nurses report that about half of the bags are more than half full when they are discarded. if you are going to use only one supplier, which would you choose and how much would you save with that choice? show calculator try it! if you buy 1000 ml bags, how many do you need to buy each month? type your answer in the space provided and click on the check answer button.

Jackie purchased 3 bottles of water and 2 cups of coffee for the family for $7.35. ryan bought 4 bottles of water and 1 cup of coffee for his family for 7.15. how much does each bottle of water cost? how much does each cup of coffee cost?

Is the figure congruent? yes or no?