Mathematics, 20.02.2022 14:00 winterblanco
average U. S. yearly per capita consumption of citrus fruit is 26.8 pounds. Suppose that the distribution of citrus fruit consumed is bell-shaped with a standard deviation 4.2 pounds. What percent of Americans would you expect to consume more than 31 pounds of citrus fruit per year
Answers: 2
Mathematics, 22.06.2019 04:00, esta54
Andy wants to find the distance d across a river. he located points as shown in the figure, then use similar triangles to find that d = 223.5 feet. how can you tell without calculating that he must be wrong? tell what you think he did wrong and correct his error. round your answer to the nearest tenth if necessary. andy must have used the wrong . the distance d is actually feet.
Answers: 2
Mathematics, 22.06.2019 04:10, kernlife
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:
Answers: 2
average U. S. yearly per capita consumption of citrus fruit is 26.8 pounds. Suppose that the distrib...