uring the first 13 weeks of the television season, the Saturday evening 8:00 P.M. to 9:00 P.M. audience proportions were recorded as ABC 30%, CBS 28%, NBC 25%, and Independents 17%. A sample o D0 homes two weeks after a Saturday night schedule revision yielded the following viewing audience data: ABC 95 homes, CBS 65 homes, NBC 81 homes, and Independents 59 homes. Test with a = 0. determine whether the viewing audience proportions changed. nd the test statistic and p-value. (Round your test statistic to two decimal places. Use Table 3 of Appendix B.) est statistic = -value is - Select your answer - onclusion: here is - Select your answer - change in the viewing audience proportions.

Virginia polled a large sample of individuals to find the percentage of students with known food allergies and the percentage of students without known food allergies. Which of the following could sufficiently display the data if only the two given categories are to be included? Select the correct answer below:   bar graph   pie chart   either a pie chart or a bar graph   neither a pie chart nor a bar graph

Answer only no need explanation. thank you so much

Part b should be a sample size of 29%, not 25%

Last rating period, the percentages of viewers watching several channels between 11 p.m. and 11:30 p.m. in a major TV market were as follows:   WDUX(News) WWTY(News) WACO(Cheers Reruns) WTJW(News) Others 15% 19% 22% 16% 28%     Suppose that in the current rating period, a survey of 2,000 viewers gives the following frequencies:   WDUX(News) WWTY(News) WACO(Cheers Reruns) WTJW(News) Others 182 536 354 151 777          Click here for the Excel Data File     (a) Show that it is appropriate to carry out a chi-square test using these data.           (b) Determine whether the viewing shares in the current rating period differ from those in the last rating period at the .10 level of significance. (Round your answer to 3 decimal places.)

The Condé Nast Traveler Gold List provides ratings for the top 20 small cruise ships. The data shown below are the scores each ship received based upon the results from Condé Nast Traveler's Annual Readers' Choice Survey. Each score represents the percentage of respondents who rated a ship as excellent or very good on several criteria, including Shore Excursions and Food/Dining. An overall score was also reported and used to rank the ships. The highest ranked ship, the Seabourn Odyssey, has an overall score of 94.4, the highest component of which is 97.8 for Food/Dining. Shore Ship Overall Food/Dining Excursions Seabourn Odyssey 94.4 90.9 97.8 Seabourn Pride 93.0 84.2 96.7 National Geographic Endeavor 92.9 100.0 88.5 Seabourn Sojourn 91.3 94.8 97.1 Paul Gauguin 90.5 87.9 91.2 Seabourn Legend 90.3 82.1 98.8 Seabourn Spirit 90.2 86.3 92.0 Silver Explorer 89.9 92.6 88.9 Silver Spirit 89.4 85.9 90.8 Seven Seas Navigator 89.2 83.3 90.5 Silver Whisperer 89.2 82.0 88.6 National Geographic…

Suppose that a polling organization surveys n = 400 people about whether they think the federal government should give financial aid to the airlines to help them avoid bankruptcy. In the poll,300 people say that the government should provide aid to the airlines. Which choices give the correct notation and value for the sample proportion in this survey?

The table to the right shows data found at a government census​ website, under a​ "Did You​ Know" panel. What type of data source is the information presented here based​ on?   Private Sector Total Employment in a State All 2008 Q2 2009 Q2 Change Female 537,290 517,948 −3.6​% Male 504,214 477,491 −5.3​% Retail Trade       Female 168,942 146,473 −13.3​% Male 162,502 144,302 −11.2​%       Question content area bottom Part 1 Choose the correct answer below.     A. The information is the outcome of an experiment that was conducted.   B. The information is the result of an observational study that was conducted.   C. The information is the result of a survey that was conducted.   D. The information is collected via ongoing business activities.   E. The information is distributed by an organization or individual.

A sample of Reese's pieces contains the following: 30 Orange, 40 Brown, 20 Yellow.  What is the proportion of orange? Round to two places.

As part of a statistics project, a teacher brings a bag of marbles containing 800 white marbles and 300 red marbles. She tells the students the bag contains 1100 total marbles, and asks her students to determine how many red marbles are in the bag without counting them. A student randomly draws 100 marbles from the bag. Of the 100 marbles, 32 are red. The data collection method can best be described as Survey Census Controlled study Clinical study The target population consists of The 1100 marbles in the bag The 300 red marbles in the bag The 32 red marbles drawn by the student The 100 marbles drawn by the student None of the above The sample consists of The 300 red marbles in the bag The 32 red marbles drawn by the student The 100 marbles drawn by the student The 1100 marbles in the bag None of the above Based on the sample, the student would estimate that marbles in the bag were red.