Question
12. A poll of 2,108 randomly chosen adults showed 93% of them own cell phones. The...
12. A poll of 2,108 randomly chosen adults showed 93% of them own cell phones. The claim was 91% of all adults own a cell phone.
a. Based on the results above, state your decision and show how you arrived at it. (4 points)
b. State your conclusion. (3 points)
c. Write a confidence statement that correctly interprets the confidence interval. (3 points)
d. In terms of your data, discuss the type of error you could have made and why. (Type I or Type II) 3 points
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