Consider an experiment regarding retired individuals which is interested in assessing the association between attitudes towards staying active and general activity level. Attitude towards staying active was measured by asking a series of questions regarding perceptions towards physical activity, resulting in a "positive attitude" or "negative attitude" classification. General activity level was classified as active, mildly active, and inactive. What is the degrees of freedom for the Chi-square test for an association between attitudes and physical activity level

Explain the difference between an independent and dependent sample. choose the correct answer below. a. in an independent sample, the individuals are chosen without replacement; in a dependent sample, the individuals are chosen with replacement. b. in a dependent sample, one would use a two-tailed hypothesis test; in an independent sample, one would use a one-tail hypothesis test. c. a sample is independent when an individual selected for one sample does not dictate which individual is to be in the second sample. a sample is dependent when an individual selected for one sample dictates which individual is to be in the second sample. d. a sample is independent when an individual selected for one sample dictates which individual is to be in the second sample. a sample is dependent when an individual selected for one sample does not dictate which individual is to be in the second sample. independent samples are often referred to as matched-pairs samples.

If you heat soup on a stove, what happens to the movement of the soup's particles? a. the particles move slower. b. the particles move faster. c. there's no change in the speed of particles. d. the particles stop moving.

Whether or not a given study has the possibility of causing harm to participants: