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Essentials of Biostatistics in Public Health, Fourth Edition Chapter 9 Question 17
Essentials of Biostatistics in Public Health, Fourth Edition 9.7 Practice Problems 17. A study of
n = 149 patients with COVID-19 reported a statistically significant, inverse correlation between
incubation period, defined as the time between exposure to the transmission source and onset of
symptoms, and length of hospital stay. Which of the following best summarizes this result? a.
Patients with longer incubation periods stay longer in the hospital. b. Patients with longer
incubation periods stay fewer days in hospital. c. Each additional day of incubation is associated
with a longer hospital stay of 1 day. d. Each additional day of incubation is associated with a
shorter hospital stay by 1 day.

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  • 1. Essentials of Biostatistics in Public Health, Fourth Edition Chapter 9 Question 17 Essentials of Biostatistics in Public Health, Fourth Edition 9.7 Practice Problems 17. A study of n = 149 patients with COVID-19 reported a statistically significant, inverse correlation between incubation period, defined as the time between exposure to the transmission source and onset of symptoms, and length of hospital stay. Which of the following best summarizes this result? a. Patients with longer incubation periods stay longer in the hospital. b. Patients with longer incubation periods stay fewer days in hospital. c. Each additional day of incubation is associated with a longer hospital stay of 1 day. d. Each additional day of incubation is associated with a shorter hospital stay by 1 day.