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Statistics / Mathematical Statistics and Data Analysis 3 / Chapter 9 / Problem 39

Mathematical Statistics and Data Analysis | 3rd Edition | ISBN: 9788131519547 | Authors: John A. Rice

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There is a great deal of folklore about the effects of the

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QUESTION:

There is a great deal of folklore about the effects of the full moon on humans and other animals. Do animals bite humans more during a full moon? In an attempt to study this question, Bhattacharjee et al. (2000) collected data on admissions to a medical facility for treatment of bites by animals: cats, rats, horses, and dogs. 95% of the bites were by man's best friend, the dog. The lunar cycle was divided into 10 periods, and the number of bites in each period is shown in the following table. Day 29 is the full moon. Is there a temporal trend in the incidence of bites?

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QUESTION:

There is a great deal of folklore about the effects of the full moon on humans and other animals. Do animals bite humans more during a full moon? In an attempt to study this question, Bhattacharjee et al. (2000) collected data on admissions to a medical facility for treatment of bites by animals: cats, rats, horses, and dogs. 95% of the bites were by man's best friend, the dog. The lunar cycle was divided into 10 periods, and the number of bites in each period is shown in the following table. Day 29 is the full moon. Is there a temporal trend in the incidence of bites?

ANSWER:

Step 1 of 4

There is a great deal fo folklore about the effect of the full moon on humans and other animals Do animals bite humans more during a full moon ?

The null and alternatives hypotheses are, : There is no temporal trend in the incident of bites. :There is a temporal trend in the incident of bites. Lets the level of significance be .

The number of lunar days is The degrees of freedom is,

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