Fundamentals of Statistics (5th Edition)
Fundamentals of Statistics (5th Edition)
5th Edition
ISBN: 9780134508306
Author: Michael Sullivan III
Publisher: PEARSON
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Chapter B.6, Problem 16AYU

Births by Day of Week An obstetrician knew that there were more live births during the week than on weekends. She wanted to determine whether the mean number of births was the same for each of the five days of the week. She randomly selected eight dates for each of the five days of the week and obtained the following data:

Chapter B.6, Problem 16AYU, Births by Day of Week An obstetrician knew that there were more live births during the week than on , example  1

Source: National Center for Health Statistics

  1. (a) Write the null and alternative hypotheses.
  2. (b) State the requirements that must be satisfied to use the one-way ANOVA procedure.
  3. (c) Use the following Minitab output to test the hypothesis of equal means at the α = 0.01 level of significance.

Chapter B.6, Problem 16AYU, Births by Day of Week An obstetrician knew that there were more live births during the week than on , example  2

  1. (d) Shown on the following page are side-by-side boxplots for each weekday. Do these boxplots support the results obtained in part (c)?

Chapter B.6, Problem 16AYU, Births by Day of Week An obstetrician knew that there were more live births during the week than on , example  3

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Chapter B.6 Solutions

Fundamentals of Statistics (5th Edition)

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