Answer Happy

(a) A random sample of 200 voters in a town is selected, and 116 are found to support an annexation suit. Find the 96% confidence interval for the fraction of the voting population favoring the suit. (b) What can be asserted with 96% confidence about the possible size of the error if the fraction of voters favoring the annexation suit is estimated to be 0.63? Click here to view page 1 of the normal probability table. Click here to view page 2 of the normal probability table. (a) The confidence interval is <p< (Round to three decimal places as needed.)
A manufacturer of MP3 players conducts a set of comprehensive tests on the electrical functions of its product. All MP3 players must pass all tests prior to being sold. Of a random sample of 800 MP3 players, 24 failed one or more tests. Find a 90% confidence interval for the proportion of MP3 players from the population that pass all tests. Click here to view page 1 of the standard normal distribution table. Click here to view page 2 of the standard normal distribution table. The 90% confidence interval is <p< (Round to three decimal places as needed.) C