In a survey of 1,954 cellphone owners, adults aged 18 and over, 743 reported that they use their phone to keep themselves occupied during commercials or breaks in something they were watching on...

In a survey of 1,954 cellphone owners, adults aged 18 and over, 743 reported that they use their phone to keep themselves occupied during commercials or breaks in something they were watching on television, while 430 used their phone to check whether something they heard on television is true.

Construct a 90% confidence interval estimate for the population proportion of adult cellphone owners who report that they use their phone to check whether something they heard on television was true.

What is the margin of error?

Lower limit:

Upper limit:

Margin of error =

Hint: Use PHStat and answers should be accurate to 4 decimal places.