PROBLEM 3E

Independent random samples of the heights of adult males living in two countries yielded the following results: n = 12, inches, sx = 4 inches and m = 15,

inches, sy = 3 inches. Find an approximate 98% confidence interval for the difference μX – μYof the means of the populations of heights. Assume that

Psychology 309 – 4/24/2016 Discrimination **If you can distinguish between situation A and situation B, you know what each situation serves and what to do in each scenario. Knowing “which” – choosing this instead of that Knowing “when” – to act at a proper time Knowing “whether” – to act differentially depending upon the probability of an event ^ These all intermingle; you don’t have to associate a situation with only one. For example, say you’re trying to decide whether or not to speed, but you end up deciding not to because you know there are usually cop cars in the area. This could be knowing which (knowing not to speed instead of speeding), knowing when (waiting to speed later, when you’re not surro