Goodness-of-Fit and Chi-Squared Tests

It is used for small sample sizes.

It is always negative.

It is symmetric.

It depends on the degrees of freedom.

To analyze variance within a group.

To test for correlation between variables.

To determine if a frequency distribution follows a specific distribution.

To compare two means.

176

239

228

252

Verify the requirements.

Determine the null and alternative hypotheses.

Decide on a level of significance.

Calculate the test statistic.

To calculate the mean.

To perform the test and find the p-value.

To determine the sample size.

To analyze variance.

If there is a significant difference between two variances.

If two variables are associated.

If a sample mean is different from a population mean.

If a distribution is normal.

36.82

24.7

12.5

6.605

Select the correct columns for observed and expected counts.

Calculate the mean of the data.

Determine the sample size.

Analyze the variance.

If different populations have the same proportion of a characteristic.

If a single population follows a normal distribution.

If there is a correlation between two variables.

If two means are equal.

The proportion was higher in 1992.

The proportion was different for at least one year.

The proportion was the same for all years.

The proportion was lower in 2008.