A study of top executives' midlife crises indicates that 45% of all top executives suffer from some form of mental crisis in the years following corporate success. An executive who had undergone a midlife crisis opened a clinic providing counseling for top executives in the hope of reducing the number of executives who might suffer from this problem. A random sample of 125 executives who went through the program indicated that only 49 eventually showed signs of a midlife crisis. Do you believe that the program is beneficial and indeed reduces the proportion of executives who show signs of the crisis?
Answer to relevant QuestionsThe unemployment rate in Britain during a certain period was believed to have been 11%. At the end of the period in question, the government embarked on a series of projects to reduce unemployment. The government was ...An advertisement for the Audi TT model lists the following performance specifications: standing start, 0-50 miles per hour in an average of 5.28 seconds; braking, 60 miles per hour to 0 in 3.10 seconds on the average. An ...According to BusinessWeek, the Standard & Poor's 500 Index posted an average gain of 13% for 2006.12 If a random sample of 50 stocks from this index reveals an average gain of 11% and standard deviation of 6%, can you reject ...According to The Economist, the current office vacancy rate in San Jose, California, is 21%.An economist knows that this British publication likes to disparage America and suspects that The Economist is overestimating the ...The average number of weeks that banner ads run at a Web site is estimated to be 5.5. You want to check the accuracy of this estimate. A sample of 50 ads reveals a sample average of 5.1 weeks with a sample standard deviation ...
Post your question