Purchase Solution

Estimate standard error of a sample proportion

Not what you're looking for?

Ask Custom Question

Of 2003 adults interviewed, 54% said yes, 42% said no, and 4 % no opinion. Find the estimated standard error for a sample proportion answering yes, and interpret?

How did you get the proportion using what formula?

Purchase this Solution
Solution Summary

The expert estimates the standard error of a sample proportion.

Solution Preview

The formula for the standard error is:

the square root of p(1 - p)/n

Here, p = ...

Purchase this Solution
Free BrainMass Quizzes
Measures of Central Tendency

Tests knowledge of the three main measures of central tendency, including some simple calculation questions.

Terms and Definitions for Statistics

This quiz covers basic terms and definitions of statistics.

Know Your Statistical Concepts

Each question is a choice-summary multiple choice question that presents you with a statistical concept and then 4 numbered statements. You must decide which (if any) of the numbered statements is/are true as they relate to the statistical concept.

Measures of Central Tendency

This quiz evaluates the students understanding of the measures of central tendency seen in statistics. This quiz is specifically designed to incorporate the measures of central tendency as they relate to psychological research.

View More Free Quizzes
Related BrainMass Solutions

  • Proportions - Standard error and confidence interval

    A sample of 400 voters reveals that 300 would support her in the November election. Estimate the value of the population proportion. Compute the standard error of the proportion.

  • Estimation, sampling distribution

    171842 1) develop a point estimate of the mean cost per treatment of the drug; develop a point estimate of the standard deviation 2) What is the probablity that a random sample of 75 students will provide a sample mean SAT score within 10 of the population

  • Sample size for estimating population proportion

    14961 Estimation: Sample size. How many voters should be sampled if the party wants to estimate the population proportion with a sampling error of 5% or less? In an election campaign, the party vying for an upset polls a sample of 100 voters.

  • Calculating sample Size

    This is a two tailed test since we are testing whether sample proportion will not differ from the true population proportion σp=standard error of proportion=√(pq/n) The maximum value of standard error of proportion for any

  • Sexually Transmitted Diseases and Statistical Analysis

    What is the Standard error of the proportion estimate? What is the Overall standard error ? What is the t-score? What do these statistics suggest?

  • Confidence interval for mean

    438039 Probability, distribution, standard deviation, confidence interval estimate, sample 1. In a study of the income of U.S factory workers, a random sample of 125 workers shows a sample mean of $29,000.

  • Interval Estimation & Margin of Error

    Details Confidence Interval Estimate for the Proportion Data Sample Size 550 Number of Successes 440 Confidence Level 95% Intermediate Calculations Sample Proportion 0.8 Z Value -1.959963985 Standard Error of the Proportion 0.017056057

  • How do you find the population proportion for the Fox TV network?

    I need to estimate the value of the population proportion, compute the standard error of the proportion, and develop a 99 percent confidence interval for the population proportion. From this I need to interpret my findings.

  • Data Analysis: Oreo and Market Pantry Cookies

    20 Sample Proportion 0.50 0.48 Upper Confidence Limit 0.651 0.627 Lower Confidence Limit 0.349 0.325 p = 0.49 Standard Error of Estimate,

View More Related Solutions