this chi^2_1=1.41 is associated with a one-sided P-value between 0.10 and 0.15 How can i calculate the P-value and why is it one-sided?Is that for chi^2 is a one-tail test?

Brianna Schmidt

Brianna Schmidt

Answered question

2022-10-30

this χ 1 2 = 1.41 is associated with a one-sided P-value between 0.10 and 0.15
How can i calculate the P-value and why is it one-sided?Is that for χ 2 is a one-tail test?

Answer & Explanation

silenthunter440

silenthunter440

Beginner2022-10-31Added 19 answers

The probability that a chi-squared random variable with one degree of freedom obtains a value higher than 1.41 is .235,
P ( χ 1 2 1.41 ) = 0.235
So what the authors say is valid only if they are conducting a two-tailed test, and so this probability is split in two (which leads to 0.1175). And in any case, the phrasing they use is confusing.

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