A Watson Wyatt Worldwide survey showed that 58% of all Hispanic Americans are satisfied with their salary. Suppose a researcher randomly samples 27 Hispanic American workers and asks whether they are satisfied with their salary with the result that 15 say yes. The sequence of Yes and No responses is recorded and tested for randomness by means of Minitab. The output follows. Using an alpha of .05 and a two-tailed test, what could you conclude about the randomness of the sample?
Answer to relevant QuestionsA Virginia Slims Opinion Poll by Roper Starch found that more than 70% of the women interviewed believe they have had more opportunity to succeed than their parents. Suppose a researcher in your state conducts a similar poll ...Suppose 12 urban households and 12 rural households are selected randomly and each family is asked to report the amount spent on food at home annually. The results follow. Use a Mann-Whitney U test to determine whether there ...American attitudes toward big business change over time and probably are cyclical. Suppose the following data represent a survey of 20 American adults taken in 1990 and again in 2013 in which each adult was asked to rate ...Use the following data to test to determine whether there are any differences between treatment levels. Let α =.05.Shown here are the percentages of consumer loans with payments that are 30 days or more overdue for both bank credit cards and home equity loans over a 14-year period, according to the American Bankers Association. Compute a ...
Post your question