Zoey is participating in a contest where she may pick any random box filled with sausages for only $1. The number of sausages in boxes vary but are randomly distributed. If the average box contains 13 sausages with a standard deviation of 4 sausages. What is the probability of Zoey randomly selecting a box that has more than 19 sausages in it?

You are in charge of the customer service phone line with many employees. at the end of each phone callthe customers are asked to rate their service from 1 to 5 stars, with 5 being the best. you find the averagerating for 20 randomly selected employees and decide you want to improve the ratings so you require thoseemployees to go through a new training program. you then wait a week and find the new average rating foreach employee. the average change is an increase in 1.3 stars with a standard devation of .9 stars.(a) is this data paired or not paired? (b) what are the null and alternative hypothesis being tested? (c) what is the t-statistic you would use? write the general formula and the final calculation.(d) sketch a t-distribution, label your t-statistic and the probability you would be interested in: