Question: A random sample of 10 students was asked to rate
A random sample of 10 students was asked to rate, in a blind taste test, the quality of two brands of ice cream, one reduced-sugar and one regular ice cream. Ratings were based on a scale of 1 (poor) to 10 (excellent). The accompanying table gives the results. Use the Wilcoxon test to test the null hypothesis that the distribution of the paired differences is centered on 0 against the alternative that the population of all student ice cream consumers prefer the regular brand.
Answer to relevant QuestionsAn insurance company in Chattanooga, Tennessee, wanted to determine the importance of price as a factor in choosing a hospital in that region. A random sample of 450 consumers was asked to select not important, important, or ...A study compared firms with and without an audit committee. For samples of firms of each type, the extent of directors' ownership was measured using the number of shares owned by the board as a proportion of the total number ...A random sample of 50 students was asked what salary the college should be prepared to pay to attract the right individual to coach the football team. An independent random sample of 50 faculty members was asked the same ...The data file Exchange Rate shows an index of the value of the U.S. dollar against trading partners' currencies over 12 consecutive months. Use the runs test to test this series for randomness. A liberal arts college was interested in determining if there were different graduate school patterns for students with undergraduate majors in history and economics. The college surveyed a random sample of recent graduates ...
Post your question