In the following 3 cases, estimate the 95% confidence level for the rate of belief that there is social media addiction using the appropriate method. a. It was asked to 1000 people and positive answers were received from 350 people. b. It was asked to 300 people, positive response was received from 100 people, and there is a belief that the audience rate is 0.4. c. It was asked to 10 people and positive answers were received from 4 people.

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A: Given Data: x=722 n=1762   p^=7221762=0.4098

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A: Given: n=600 and x=480. Then,p^=xn=480600=0.8

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Q: In your work for a real estate company, you find that in a sample of 1762 home buyers, 722 found…

A: Givenx=722n=1762p^=7221762p^=0.4098α=1-0.98=0.02α2=0.01zc=z0.01=2.3263         (from z-table)

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