Probability time-cnn poll provide a sample proportion

Reference no: EM13121616

Time/CNN voter polls monitored public opinion for the presidential candidates during the 2000 presidential election campaign. One Time/CNN poll conducted by Yankelovich Partners, Inc., used a sample of n = 589 likely voters (Time, June 26, 2000). Assume the population proportion for a presidential candidate is p = 0.50. The questions below concern the sample proportion of likely voters favoring the presidential candidate.

(a.) What is the probability the Time/CNN poll will provide a sample proportion within plus-or-minus 0.04 of the population proportion?

(b.) What is the probability the Time/CNN poll will provide a sample proportion within plus-or-minus 0.03 of the population proportion?

(c.) What is the probability the Time/CNN poll will provide a sample proportion within plus-or-minus 0.02 of the population proportion?

(d.) Suppose the sample size is increased from n = 589 to n = 1,178. With this new, larger sample size, what is the probability the Time/CNN poll will provide a sample proportion within plus-or-minus 0.02 of the population proportion?

Reference no: EM13121616

Questions Cloud

Create confidence interval for proportion of population : Develop a 95% confidence interval for the proportion of the population of adults who feel customer service is better today than it was 2 years ago.

Tax basis in partnership interest : Steve and Jim formed a partnership on January 1 with cash contributions of $600,000 and $400,000, respectively. The partners agree to share profits and losses equally. The partnership immediately borrowed $200,000. What is Jim's tax basis in his p..

What is the final temperature : If all the energy obtained by by burning 1.26 lb of butane (fuel value is 10.85 kcal/g) is used to heat 126.0 kg of water at an initial temp of 19.7C, what is the final temperature.

Explain how much qpai and wages are allocated to janet : Janet has a 40% interest in the S corporation. All expenses that reduce DPGR are from wages, and all wages paid relate to DPGR. Explain how much QPAI and wages are allocated to Janet?

Probability time-cnn poll provide a sample proportion : What is the probability the Time/CNN poll will provide a sample proportion within plus-or-minus 0.02 of the population proportion?

Freud''s psycho-dynamic theory : Like it or not, Freudian theory is still a standard for evaluating personality in spite of the limitations. Can you analyze Freud's psycho-dynamic theory in terms of his views of the unconscious mind, the structure of personality, and defense mechani..

How many grams of cacl2 would be required : How many grams of CaCl2 would be required to produce a 3.5 M (molar) solution with a volume of 2.0 L.

What is the maximum concentration of mg2+ : A fluoridated water supply contains F- at a concentration of 8.9 ppm. What is the maximum concentration of Mg2+ that can exist in this water supply without causing precipitation.

Calculate the labour price variances for each worker : Calculate the labour price (rate) variances for each worker level. b. Compute the labour efficiency variances for each worker level. c. Compute the labour mix variances for each worker level.

User Account

All Pages