SOLUTION: In a survey sample of 83 respondents, about 30.1% of the sample work less than 40 hr per week. What is the estimated standard error of the proportion for this group?

SOLUTION: In a survey sample of 83 respondents, about 30.1% of the sample work less than 40 hr per week. What is the estimated standard error of the proportion for this group?

Algebra.Com

Question 1201763: In a survey sample of 83 respondents, about 30.1% of the sample work less than 40 hr per week. What is the estimated standard error of the proportion for this group?
Answer by math_tutor2020(3816) (Show Source): You can put this solution on YOUR website!

n = 83 = sample size
phat = 0.301 = sample proportion

SE = standard error of the proportion
SE = sqrt(phat*(1-phat)/n)
SE = sqrt(0.301*(1-0.301)/83)
SE = 0.0503480656
That value is approximate.
Round it however needed.

RELATED QUESTIONS
A survey of 1020 workers in a certain year found that 54% of the respondents spend a... (answered by Boreal)

According to Nielsen Media Research, the (population) average number of hours of TV... (answered by Boreal)

A survey was given to a random sample of 105 voters in the United States to ask about... (answered by math_tutor2020)

Business Week conducted a survey of graduates from 30 top MBA programs (Business Week,... (answered by stanbon)

in a certain survey of 1,004 adults, 83% reported having more than one television at... (answered by edjones)

Q)Business Week conducted a survey of graduates from 30 top MBA programs. On the basis... (answered by stanbon)

A national magazine claims that the average college student watches less television than... (answered by Boreal)

According to a polling organization, 22% of adults in a large region... (answered by stanbon)

Many college graduates who are employed full- time have longer than 40-hour work weeks.... (answered by stanbon)