A survey of 150 students is selected randomly on a large university campus. They are asked if they use a laptop in class to take notes. The result of the survey is that 60 of the 150

students responded "yes." An approximate 98% confidence interval is (0.307, 0.493).

Complete parts a through d below.

Part 1

a) How would the confidence interval change if the confidence level had been

90% instead of 98%?

The new confidence interval would be narrower or wider.

The new confidence interval would be _ , _

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