D MusicHQ - Watch F Zoom
C Clever Portal
Google Docs
O Spacebar Counter
Fri Sep. 43-6: Practice Buddy
Assignment is past due (09/04/20
E Question Help
3.6.119-20
Museum Tour Schedule
Use the museum tour schedule to answer problems 19 and
20.
Tour time Level Steps to
9:00 am
10:00 a. m.
11:00 a. m.
1
2
3
Level
38
39
36
19. There are 23 students in Mrs. King's class touring three levels of a museum. Find the total number
of steps the students climbed by their 11:00 a. m. tour.
The students climbed a total of steps by their 11:00 a. m. tour.
(Type a whole number.)
Enter your answer in the answer box and then click Check Answer
Review progress
Question 9
of 11
Back
Next

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: