STATISTICAL TECHNIQUES AND TOOLS
CHI SQUARE
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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If a chi-squared number is 5.29 with a df of 6, what is the p-value?
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.38
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.49
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.51
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None of the above
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Explanation:
Detailed explanation-1: -What is the mean of a Chi Square distribution with 6 degrees of freedom? Explanation: By the property of Chi Square distribution, the mean corresponds to the number of degrees of freedom. Degrees of freedom = 6. Hence mean = 6.
Detailed explanation-2: -P > 0.05 is the probability that the null hypothesis is true. 1 minus the P value is the probability that the alternative hypothesis is true. A statistically significant test result (P ≤ 0.05) means that the test hypothesis is false or should be rejected. A P value greater than 0.05 means that no effect was observed.
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