A chi-squared goodness-of-fit can be used to test hypotheses about the proportio

Question

A chi-squared goodness-of-fit can be used to test hypotheses about the proportion of the population falling into each of the possible categories. True False In order to decide whether the observed data is compatible with the null hypothesis, the observed cell counts are compared to the cell counts that would be expected when the alternative hypothesis is true. True False The chi-squared test statistic, X^2, measures the extent to which the observed cell counts differ from those expected when H_0 is true. True False For the chi-squared goodness-of-fit chi-squared test, the associated P-value is the area under the appropriate chi-squared curve to the left of the calculated value of X_2. True False For a sample size n, there are n - 1 degrees of freedom associated with the goodness-of-fit test statistic, X^2. True False

Explanation / Answer

5) true

If n is sample size then degrees of freedom is n-1

4) True.

Chi square P value is associated with left side area under the curve

3) True

Chi square test is used to test is there any significance difference between observed frequency and expected frequency

1) True

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