The number of times a machine broke down each week was observed over a period of 100 weeks and recorded in the accompanying table. It was found that the average number of breakdowns per week over this period was 2.1. Test the null hypothesis that the population distribution of breakdown is Poisson.
Answer to relevant QuestionsIn a period of 100 minutes there were a total of 190 arrivals at a highway toll booth. The accompanying table shows the frequency of arrivals per minute over this period. Test the null hypothesis that the population ...University administrators have collected the following information concerning student grade point average and the school of the student’s major. Determine if there is any association between GPA and major. A sample of 11 managers in retail stores having selfcheckout was asked if customers have a positive attitude about the scanning process. Seven managers answered yes, and four answered no. Test against a two-sided alternative ...A random sample of 40 business majors who had just completed introductory courses in both statistics and accounting was asked to rate each class in terms of level of interest on a scale of 1 (very uninteresting) to 10 (very ...Production records indicate that in normal operation for a certain electronic component, 93% have no faults, 5% have one fault, and 2% have more than one fault. For a random sample of 500 of these components from a week's ...
Post your question