[Solved] A major department store chain is interested in estimating the average amount its credit card customers spent on their first visit to the chain's new store in the mall. Fifteen credit card accounts were randomly sampled and analyzed with the following results: X = $50.50 and s2 = 400. Assuming the distribution of the amount spent on their first visit is approximately normal, what is the shape of the sampling distribution of the sample mean that will be used to create the desired confidence interval for µ? A) a t distribution with 14 degrees of freedom B) a t distribution with 15 degrees of freedom C) approximately normal with a mean of $50.50 D) a standard normal distribution Gender Identity Disorder: An older term for what is now more commonly referred to as gender dysphoria, a condition where there is a conflict between a person's physical or assigned gender and the gender with which they identify. Exhibitionism: A psychological condition characterized by a compulsion to expose one’s genitals to an unsuspecting person for sexual arousal. Voyeurs: Individuas who derive sexual pleasure from observing others who are naked, in the process of undressing, or engaged in sexual activity. Sexual Sadism: A sexual preference that involves sexual arousal from inflicting pain or humiliation on others.