an-analyst-is-comparing-the-consistency-of-customer-satisfaction-scores-between-

Question

An analyst is comparing the consistency of customer satisfaction scores between two branches of a retail store. A sample of $14$ scores from Branch X has a standard deviation of $18.7$ , and a sample of $11$ scores from Branch Y has a standard deviation of $22.3$ . At $alpha equals 0.05$ , is there evidence to suggest the standard deviations are not equal?

Accepted Answer

Fail to reject $14$ ; there is no evidence that the standard deviations differ.

Answer

Reject $14$ ; the standard deviations are significantly different.

Answer

Fail to reject $14$ ; the means are equal.

Answer

Reject $14$ ; the standard deviations are equal.