Test at 0.01 whether the performance in the training program and success in the job are independentSuccess in jobPerformance Below aveAveAbove avePoor235029Ave287950Very good194963

Answered: Image /qna-images/answer/021572a8-f938-413e-92b0-bea775f8efeb.jpg

Answered: Test at 0.01 whether the performance in…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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Auditors make assessments on the basis of their individual experience, the experience of others, or a combination of experiences. A study of the auditors’ methods was performed. The average number of errors is recorded. At a=0.10, test the claim that errors are equal. Individual Experience Experience of Others Combination 19.9 18.4 21.1 19.1 19.6 18.3 23.3 15.4 21.3 19.3 21.5 23.8 20.1 17.4 23.4 19.7 23.1 17.2 23.4 17.6 20.1 17.3 20.3 20.4 22.3 20.1 20.7 21.0 18.4 17.4 19.5 19.9 23.6 20.0 22.1 19.1 20.1 20.6 24.9 17.8 17.7 21.5 19.2 22.0 17.5 18.3 19.6 24.4 20.2 20.5 20.8 19.7 26.2 20.2 22.7 21.7
wants to know if it is better for Instructor Pilots to give flight students feedback in the airplane immediately after each maneuver rather than to wait till they are on the ground and debriefing. Six student pilots are selected. Each student receives immediate feedback on half of their flights and receives delayed (after landing) feedback on the other half of their flights. Average scores for the student’s evaluations are listed in the table below. Show work. Student Pilot Score for Immediate Feedback Score for Feedback Received After on the Ground Student Pilot A 4 2 Student Pilot B 3 4 Student Pilot C 5 2 Student Pilot D 3 3 Student Pilot E 5 3 Student Pilot F 5 2 a. Test the hypothesis that the student pilots receive higher evaluations on flights where they received immediate feedback compared to delayed (after landing) feedback. Use α =.05. Use the four steps of hypothesis testing. b. Calculate Omega squared (ώ2)
1. Was a dependent or independent t-test used to analyze the data? How do you know?
e A researcher with the Department of Education followed a cohort of students who graduated from high school in a certain year, monitoring the progress the students made toward completing a bachelor's degree. One aspect of his research vas to determine whether students who first attended community college took longer to attain a bachelor's degree than those who immediately attended and remained at a 4-year institution. The data in the table attached below summarize the esults of his study. Complete parts a) through e) below. E Click the icon to view the sample data. OA. The samples are independent. O B. The samples can be reasonably assumed to be random. OC. The population is given to be normally distributed. OD. The sample sizes are large (both greater than or equal to 30). O E. The sample sizes are not more than 5% of the population. :) Does the evidence suggest that community college transfer students take longer to attain a bachelor's degree? Use an a= 0.10 level of significance.…
answer question D based on the given informa
ANSWER ONLY 4 AND 5
A runner states that his average time for running a mile is 6.5 minutes. Given the following times from 8 recent mile runs, test the claim that his actual average is not what he states it to be at the a = 0.05 level of significance. 6.25 6.6 6.8 7.2 6.3 7.0 6.5 6.75
Use the provided information to calculate the t statistic and critical t values.
. Honesty Coffee stations in offices often just ask usersto leave money in a tray to pay for their coffee, butmany people cheat. Researchers at Newcastle Universityalternately taped two posters over the coffee station.During one week, it was a picture of flowers; during theother, it was a pair of staring eyes. They found that theaverage contribution was significantly higher when theeyes poster was up than when the flowers were there.Apparently, the mere feeling of being watched—even byeyes that were not real—was enough to encourage peopleto behave more honestly. [NY Times, Dec. 10, 2006]
Coal is carried from a mine in West Virginia to a power plant in New York in hopper cars on a long train. The autoratic hopper car loader is set to put 57 tons of coal ints each car. The actual weights of coal loaded d deviation o = 1.1 ton.
An instructor for a SAT preparation course claims that the course will improve the test scores of students. The table shows the critical reading scores for 10 students the first two times they took the SAT. Before taking the SAT for the second time, the students took a course to try to improve their critical reading SAT scores. At a = 0.01, is there enough evidence to support the instructor's claim? 1 200 300 2 350 420 3 250 300 4 330 390 5 200 240 6 370 480 7 320 350 8 270 300 9 220 290 10 310 350
Basketball Scores In a Physical Education (P.E) class, the teacher wanted to work on basketball skills and game development over a five week period. The P.E. teacher prepared a table showing the points scored by five players during this time. 1. What is the value of x? II. What is the value of y? Ben Sienna Dexter Avi Rayner Range Game 1 4 8 5 8 12 8 Game 2 11 13 8 13 16 8 Game 3 9 4 6 5 25 21 Game 4 7 16 13 20 4 Game 5 14 10 3 17 23 20 Mean for student 9 X 7 12.6 16

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Success in job	Performance
	Below ave	Ave	Above ave
Poor	23	50	29
Ave	28	79	50
Very good	19	49	63

Test at 0.01 whether the performance in the training program and success in the job are independent Success in job Performance Below ave Ave Above ave Poor 23 50 29 Ave 28 79 50 Very good 19 49 63