Construct and report the 95% confidence intervals for the proportions of first-born boys, separately for each racial group. Health and medical homework help

In this discussion, we will investigate confidence intervals for binomial probabilities. The discussion is in two parts.

  • 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%.” You may want to interpret the accuracy statement in terms of
    “margin of error”, as explained in the text, Section 6-2. Remember, the
    width of a confidence interval is a measure of the precision of the
    estimate.

https://www.dropbox.com/s/9oc9reuw5dvcos0/MHA610_week3_discussion.mp4?dl=