17. An investigation of the effectiveness of a training program to improve customer relationshipsincluded a pre-training and a post-training customer survey. To compare the differences theycomputed (post-training survey score – pre-training survey score). Seven customers wererandomly selected and completed both surveys. The results are shown here.CustomerPre-training SurveyPost-training SurveyA855C1010710E68F528.For a 0.05 significance level, what is the decision regarding the hypothesis that the training waseffective in improving customer relationships?A) Reject the null hypothesis and conclude that the training was effective.B) Reject the null hypothesis and conclude that the training was ineffective.C) Fail to reject the null hypothesis and conclude that the mean survey scores are the same.D) Fail to reject the null hypothesis and conclude that the mean survey scores are not equal.

Name: 17. An investigation of the effectiveness of a training program to im
Uploaded: 2024-03-20T07:07:00.000Z
Channel: Bartleby
Description: 17. An investigation of the effectiveness of a training program to improve customer relationshipsincluded a pre-training and a post-training customer survey. To compare the differences theycomputed (post-training survey score – pre-training survey s

When samples are dependent and if they have the same number of units, then we use a t-test to find…

Math

Statistics

17. An investigation of the effectiveness of a training program to improve customer relatio included a pre-training and a post-training customer survey. To compare the difference computed (post-training survey score – pre-training survey score). Seven customers we randomly selected and completed both surveys. The results are shown here. Customer Pre-training Survey Post-training Survey A 8 5 C 10 10 D 7 10 E 8. F 6 G 8

17. An investigation of the effectiveness of a training program to improve customer relatio included a pre-training and a post-training customer survey. To compare the difference computed (post-training survey score – pre-training survey score). Seven customers we randomly selected and completed both surveys. The results are shown here. Customer Pre-training Survey Post-training Survey A 8 5 C 10 10 D 7 10 E 8. F 6 G 8

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

See similar textbooks

Similar questions

Researchers wondered whether the size of a person's brain was related to the individual's mental capacity. They selected a sample of 5 females and 5 males and measured their MRI image pixel counts and IQ scores. Females Males MRI IQ MRI IG The data is reported to the right. Complete parts (a) through (d) below 139 858,472 140 955,003 935,494 924,059 1.079.550 1,001.121 Click the icon to view the critical values table. 991,305 138 141 857,782 833,868 790,619 133 135 132 141 135 140 AMRI 1,080,000- AIO 145 AIO 145- AMRI 1,080,000 780,000 130 130 780,000 130 780,000 780,000 130 1,080,000 145 1,080,000 MRI 145 MRI (b) Compute the linear correlation coefficient between MRI count and IQ. Are MRI count and IQ linearly related? Select the correct choice below and, if necessary, fill in the answer box to complete your choice. (Round to three decimal places as needed.) A. Yes, MRI count and IQ are linearly related since the linear correlation coefficient is O B. No. MRI count and IQ are not…
A Likert Scale is a tool used in many sample surveys to collect opinions on a statement. In this exercise you are asked to use a scale that runs from 5=strongly agree 4-agree 3-neither agree nor disagree 2-disagree 1-strongly disagree What sort of data is a Likert Scale, and why?
What's the t= ? And the p-value?
Eye Color f % Amber 5 4.81% Blue 8 7.69% Brown 82 78.85% Gray 3 2.88% Green 2 1.92% Hazel 3 2.88% Red/Violet 1 0.96% Total 104 100.00% Comment on your finding
When manually calculating a Mann-Whitney analysis, the first step is to organize your data in numerical order, from lowest to highest. Which of the following statements is true about this step in the analysis process. Group of answer choices The data should be squared before you sum the data. The data from both groups should be combined before ranking the data. The data should be summed (added) before ranking the data. The data should be ranked with each group independently.
R A veterinarian recorded how many kittens were born in each litter. This data is summarized in the L histogram below. (Note: The last class actually represents "7 or more kittens," not just 7 kittens.) 14 12 10- 8- 6- 4 1 2 3 4 7 8 # of kittens What is the frequency of litters having at most 3 kittens? ans = Fe Ro 1 FEB 18 P. W MacBook Air 20 000 esc F5 F6 F2 F3 F4 F1 & ! @ 1 2 4 5 Q W R %24 # 3 6 2. Frequency
ou are doing a problem where you have a negative z-score, and you have to look up the proportion of the shaded area in the tail beyond that z-score; in other words, you are shading to the left from your z-score, and looking for the proportion that you shaded. Four “proportions” are given below. Which one is the ONLY one that could potentially be the number you are looking for? (Hint: Think about what you know about proportions: What kind of number are they? And what things can they represent?) Group of answer choices p = 0.3800 p = -0.1500 p = 1.1500 p = 0.5635
Net Worth. The Board of Governors of the Federal Reserve System publishes information on family net worth in the Survey of Consumer Finances. In 2010, the mean net worth of families in the United States was $498.8 thousand and the median net worth was $77.3 thousand. Which measure of center do you think is more appropriate? Explain your answer.
Español Over the past several months, customers at Stymie's department store have been asked to fill out customer satisfaction surveys. In the surveys, the customers rate their shopping experience on a scale of 0 to 100. Here are 24 recent ratings. 14, 16, 18, 25, 27, 34, 37, 39, 41, 45, 47, 50, 51, 53, 53, 53, 61, 61, 67, 73, 77, 83, 85, 86 圖 Send data to calculator Aa Frequency 8- 6- 5 5 4- 3 3 2- 20 Customer satisfaction rating 40 60 80 100 O Mean (a) Which measures of central tendency do O Median not exist for this data set? Choose all that O Mode apply. O None of these measures I Mean (b) Suppose that the measurement 86 (the largest measurement in the data set) were replaced by 97. Which measures of central tendency would be affected by the change? Choose all that apply. O Median O Mode O None of these measures (c) Suppose that, starting with the original data set, the largest measurement were O Mean O Median removed. Which measures of central O Mode tendency would be changed from…