Confidence interval for the population of all americans

Assignment Help Basic Statistics

Reference no: EM13215995

In a gallop poll of 1005 randomly selected Americans in April 2006, 482 responded "yes" to the question " do you consider the amount of federal income tax you have to pay as too high?"

a. If appropriate, find a 90% confidence interval for the population of all Americans who consider that the amount of federal income tax they pay as too high.

b. If appropriate, find a 99% confidence interval for the population proportion of all Americans who consider that the amount of federal income tax they pay as too high.

Reference no: EM13215995

Questions Cloud

How much can clark claim as a child care credit in 2013 : Clark, a widower, maintains a household for himself and his two dependent preschool children. For the year ended December 31, 2013, Clark earned a salary of $36,000. He paid $3,500 to a housekeeper to care for his children in his home.

Explain challenges managers face with managing uncertainty : Compare and contrast the difference between innovation and entrepreneurship. Describe the challenges managers face with managing uncertainty and risk.

What is expected time in minutes until the next touchdown : Suppose it has been observed that touchdowns scored in a game by your favorite football team are Poisson random variables. The rate is = 4 per game. We know from the lecture that the time until the next touchdown follows an exponential distribut..

What would be the estimated population variance : Suppose the counselor found the sum of squared deviations from the mean of the sample to be 135. Given that he tested 10 people, what would be the estimated population variance?

Confidence interval for the population of all americans : If appropriate, find a 90% confidence interval for the population of all Americans who consider that the amount of federal income tax they pay as too high.

Compute and interpret the margin of error : Find t (subscript alpha/2) for a confidence interval with 90% confidence and compute and interpret the margin of error "E" for a confidence interval with 90% confidence.

Find the point estimate of the population mean : Find the point estimate of the population mean, calculate Standard deviation/√n and calculate Z (subscript-alphasymbol/2) interval for the 95% confidence level.

Explain cultural differences between the team members : Thinking about the cultural differences between the team members (e.g. language, decision making processes), prepare a short list of recommendations that address the following:

Contrast the investing activities section of the cash flow : Assess whether the direct or indirect cash flow statement is higher quality financial reporting, consider whether direct cash flow information (1) is useful for predictive purposes, or (2) is valued in the direct cash flow reporting format, relati..

User Account

All Pages