preprekomW

2021-02-06

Write a two-way table of observed counts for sex and whether a participant in soccer had a lower-extremity injury or not. Determine a two-way table of expected counts for these data. Show calculations verifying that the value of the chi-square statistic is 2.51.

joshyoung05M

Skilled2021-02-07Added 97 answers

a) Here is the table of observed counts:

The numbers in the ”No” column are simply differences between last column and first column , and the numbers in the last row are sums of columns

b)The expected count for each cell is calculated as

Here is the table of the expected counts:

c) The value of chi-square statistics is

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