Multiple Choice
A 2012 survey of 1,254 American cell phone owners indicates that 17% of those surveyed do their browsing on their phone rather than a computer or other device. You use these data to calculate a 95% confidence interval for the proportion of all American cell phone owners that do their browsing on their phone rather than a computer or other device.
-Suppose you constructed a 90% confidence interval with these data instead. How would your 90% confidence interval compare to your 95% confidence interval? Your 90% confidence interval would be:
A) Wider
B) Narrower
C) Same width
D) Cannot be determined with the information provided
Correct Answer:

Verified
Correct Answer:
Verified
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