In the United States, 44% of all residents have type O blood. A random survey of 150 black Americans was conducted to see if the percents of blacks in the US that have type O blood is more than 44%. Of the 150 participants 74 had type O blood.

Hypothesize: H0:

Ha:

Compute to Compare:

The proportion of people with type O blood in the USis 44%. In the surveythere are 150blacks and 74 or (74/150) 49.3% have type O blood. The standard error of the sampling sampling distribution is:

p^=74150=0.493p=0.44

SE=0.44(10.44)150=0.0405

zobserved=0.4930.440.0405=1.31

What is the p-value? You can type your work in the space provided or upload your work to the comment area when you are finished. (Hint: Make sure you look at your hypothesis and see that it is a "greater than" in the alternative hypothesis.)