Question
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
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.)
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