The following data represent the discrete probability distribution for the number of stars that reviewers gave a
Question:
The following data represent the discrete probability distribution for the number of stars that reviewers gave a first edition statistics reference book.
Stars 5 4 3 2 1
Probability 25% 35% 20% 10% 10%
The second edition of this reference book has been released and a random sample of people that have purchased the book has been collected with the following results.
Stars 5 4 3 2 1
Frequency 23 18 8 2 9
The publisher would like to know if the probability distribution for reviews has changed from the first edition to the second edition using α = 0.05. The expected frequency of one-star reviews is ________.
Legal Research Analysis and Writing
ISBN: 978-1133591900
3rd edition
Authors: William H. Putman, Jennifer Albright