At a local supermarket receiving dock the number of truck
At a local supermarket receiving dock, the number of truck arrivals per day is recorded for 100 days.
(a) Estimate the mean from the sample.
(b) Calculate the expected frequencies assuming a Poisson distribution. Show your calculations in a spreadsheet format.
(c) Carry out the chi-square test, combining end categories as needed to ensure that all expected frequencies are at least five. Show your degrees of freedom calculation.
(d) At α = .05, can you reject the hypothesis that arrivals per day follow a Poisson process?
Membership TRY NOW
  • Access to 800,000+ Textbook Solutions
  • Ask any question from 24/7 available
  • Live Video Consultation with Tutors
  • 50,000+ Answers by Tutors
Relevant Tutors available to help