8.58 Google Glass Google started selling Google Glass (a type of wearable technology that projects information onto

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8.58 Google Glass Google started selling Google Glass (a type of wearable technology that projects information onto the eye) in the United States in spring 2014 for $1500. A national poll reveals that out of 500 people sampled, nobody owned Google Glass.

a. Find the sample proportion who don’t own Google Glass and its standard error.

b. Find a 95% confidence interval, using the large-sample formula. Is it sensible to conclude that no one in the United States owns Google Glass?

c. Why is it not appropriate to use the ordinary large-sample confidence interval in part b? Use a more appropriate approach and interpret the result.

d. Is it plausible to say that fewer than 1% of the population own Google Glass? Explain.

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Statistics The Art And Science Of Learning From Data

ISBN: 9781292164878

4th Global Edition

Authors: Alan Agresti, Christine A. Franklin, Bernhard Klingenberg

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