Difference in the proportions of americans

Reference no: EM131026388

Sometimes surveys provide interesting information about issues that did not seem to be the focus of survey initially. Results from two CNN/USA Today/Gallup polls, one conducted in March 2003 and one in November 2003, were recently presented online.4 Both polls involved samples of 1001 adults, aged 18 years and older. In the March sample, 45% of those sampled claimed to be fans of professional baseball whereas 51% of those polled in November claimed to be fans.

a. Give a point estimate for the difference in the proportions of Americans who claim to be baseball fans in March (at the beginning of the season) and November (after the World Series). Provide a bound for the error of estimation.

b. Is there sufficient evidence to conclude that fan support is greater at the end of the season? Explain.

Reference no: EM131026388

Questions Cloud

What problems does the given movie address : What problems does the movie address? Generally? Specifically? What was something in the movie that seemed very interesting and/or important to me?

Partial investiation of n*n matrices : Show that if c is a nonzero complex number and N is a nilpotent k × k matrix over C, then cI + N has a square root. (First look at I +1 cN.)

What chemical pathways might no in the troposphere follow : Assuming that NO can eventually diffuse into the stratosphere, how might it affect the conditions of life on Earth? Using the index to this text, look up the chemistry of nitrogen oxides. What chemical pathways might NO in the troposphere follow?

Letters to the editor : Consider your responses to your classmates as "Letters to the Editor." Assume you are the reader of this newspaper and want to respond to what you read. Your responses must show some analytical thought and foster more dialogue. Ask questions, give a ..

Difference in the proportions of americans : Give a point estimate for the difference in the proportions of Americans who claim to be baseball fans in March (at the beginning of the season) and November (after the World Series). Provide a bound for the error of estimation. Is there sufficien..

Question regarding the bound for the error of estimation : Estimate the difference in the proportions of firstborn or only children for the two populations from which these samples were drawn. Give a bound for the error of estimation.

Describe obstacle in detail-innovation at international food : In discussion with Josh, Tonya foreshadows "some serious obstacles to overcome." Describe these obstacles in detail.

Vote for the republican candidate : According to this study, the estimate for p, the proportion of all "likely voters" who will vote for the Republican candidate, is p = .601. Find a bound for the error of estimation.

Does twain think that the unites states acting : Does Twain think that the Unites States acting as a "protector" of certain nation is acceptable? Cite specific evidence from the text.

User Account

All Pages