The following data are taken from Chapter 14 and refer to a study of weight gain in treated and untreated girls suffering from anorexia.

Which of the following formula for t in this situation would be a correct one?

Question

The following data are taken from Chapter 14 and refer to a study of weight gain in treated and untreated girls suffering from anorexia.

Which of the following formula for t in this situation would be a correct one?

Quizplus · Accepted Answer

According to the data given in the table, the formula for calculating t in this situation would be:

t = (x̄1 - x̄2) / (s_p * √((1/n1) + (1/n2)))

where x̄1 and x̄2 are the sample means for the two groups, s_p is the pooled standard deviation, n1 and n2 are the sample sizes for the two groups.

The formula given in option B is the correct formula for t in this situation.

The Following Data Are Taken from Chapter 14 and Refer