Knowledge of binomial confidence intervals

Assignment Help Applied Statistics

Reference no: EM13669676

Return to the data you had generated in the second part of the Week Two assignment. You should have total numbers of first-born boys and girls in your state between the years 2007 and 2012 separately by racial group: American Indians or Alaska Natives, Asian or Pacific Islanders, Black or African Americans, and Whites. For the first part of this discussion, construct and report the 95% confidence intervals for the proportions of first-born boys, separately for each racial group. (Use the normal approximation to the binomial distribution.) Comment on the confidence intervals: can you infer from the confidence intervals that the proportions of first-born boys differ among the racial groups? Explain what the widths of the confidence intervals tell you.
Leading up to elections, you often hear results of polls of voters' preferences, with statements such as: "This poll was taken from a random sample of 600 potential voters, and has an accuracy exceeding 96%." Please interpret this statement in light of your knowledge of binomial confidence intervals. (Remember, the width of a confidence interval is a measure of the precision of the estimate.)

Reference no: EM13669676

Questions Cloud

Organisation development plan : Drastic Action or Evolutionary Adaptation: An Organisation Development Perspective - Organisation Development Plan

Collaborative leadership team project : Communications to prepare a presentation for the group, communicating company's values, mission and vision at the convention -

Write a strategic plan for the organisation : Write a strategic plan for the organisation using the above structure or an appropriate structure that incorporates all the above components - brief analysis of each of the above areas explaining the relevant factors in detail; and in context of the..

Convariance matrix : Convariance matrix

Knowledge of binomial confidence intervals : knowledge of binomial confidence intervals

Steel housing for electrical equipment : A manufacturing company produces steel housing for electrical equipment

Research scenario in which z-score is valuable : Research Scenario in which z-score is valuable

Study whether systolic blood pressure varied by time : Study whether systolic blood pressure varied by time

Develop a business plan description : A business plan remains a written piece of paper until it is actually implemented. Once implemented, it acts as a living or dynamic resource that helps to keep a business focus and continuously evaluate business performance against stated objectiv..

User Account

All Pages