1. A GMS Boutique accepts three types of payments – Cash Payment, Automated TellerMachine Card (ATM) and Credit Card. The manager is interested in finding out whetherthere is a difference in the mean amounts charged by costumers on three types ofpayments. A random sample of 18 purchases (rounded to the nearest peso) revealed theseamounts.P3,400P 1,3001,4001, 500Cash PaymentP2,000P1,700P1,9002,2002,100P2,8004,0003,0001,5004,2002,5001,600ATM3,3001,800Credit CardAt 0.05 level of significance, can we conclude that there is a difference in themean amounts purchase according to the modes of payments?Solution:Step 1: State the hypotheses.Ho:H;:Step 2: The level of significance isStep 3: determine the degrees of freedom and the critical value of F.df=dfwg =andcriticalStep 4: Complete the table and compute for the value of F.Degrees ofFreedomSource ofSum ofMean ofFVariationsSquaresSquaresBetweenGroupsWithin GroupsTotalStep 5: Decision Rule.Step 6: Conclusion.

The data set is: Cash payment ATM Credit card 1300 1400 1500 2000 2200 2100 3400 3300 1800…

Answered: 1. A GMS Boutique accepts three types…

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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Show all work/steps! You must use JMP to analyze data.
Essay 21. a. What types of studics can show causc-and-effect relationships? Explain. b. What must be included in thosc studies from part (a) in order to show cause-and-effect? Explain. c. Some people respond favorably to any treatment given. What can be done to address this problem? Explain.
Answer the following question.
An employer is ready to give her employees a raise andis considering two plans. Plan A is to give each personan $8.00 per day increase. Plan B is to give each person a 10% increase. Data on the current pay of these employ-ees shows that the median pay is $80 per day with an interquartile range of $10. Which of the following datasets will have the same median?A) The current pay and Plan A onlyB) The current pay and Plan B onlyC) Plan A and Plan B onlyD) The current pay, Plan A, and Plan BE) None; the current pay, Plan A, and Plan B will allhave different medians.
Construct a stem-and-leaf plot for the following
3. Calculate mean and median of the following. Income (Rs) 10-20 20-30 30-40 40-50 50-60 60–70 No. of workers: 15 20 20 10 5
5. Should cell phone use be banned by drivers? 188 people took part in a survey. The answers are classified by the gender of the respondent as below: Agree Disagree Female 68 37 Male 26 46 What is the conditional proportion of females who agree? (a) 0.60 (b) 0,55 (c) 0.45 (d) 0,65 (e) 0.72 6. Refer to the information given in Question 5. What is the marginal proportion of people who agree? (a) 0.72 (b) 0.55 (c) 0.60 (d) 0.45 (e) 0.65 7. Refer to the information given in Question 5. Is there an association between gender and the response given on the survey? (a) Yes, because the proportion of females who agree is higher than the proportion of males who agree. (b) Association here has nothing to do with what proportions of males and females agree. (c) No, because the proportions of females and males who agree are very similar. (d) We need to look at a scatterplot to judge association. (e) Yes, because the…
data from the office for national Statistics show that the mean age at which men in greatbritain get married is 30.8 years (the Guardian, february 15, 2013). a news reporternoted that this represents a continuation of the trend of waiting until a later age to wed.a new sample of 47 recently wed british men provided their age at the time of marriage.these data are contained in the datafile britainMarriages. do these data indicate that themean age of british men at the time of marriage exceeds the mean age in 2013? test thishypothesis at a = .05. what is your conclusion?.
Suppose the following data show the prices of 4 cars with similar characteristics that sold at a recent auction (in thousands of dollars): 5.7, 11.3, 10.4, 12.9. Calculate the mean selling price of the sample. (please express your answer using 2 decimal places)
9. Lawson and Associates, an international legal firm, specializes in corporate law. The firm's rates are: $150 per hour for consulting, $250 per hour for researching a case, $350 per hour for writing a brief, and $450 per hour for presenting a case in court. Last week one associate spent 30 hours consulting with a client, 20 hours researching a case, 10 hours writing a brief, and 15 hours presenting a case in court. Calculate the mean hourly charge for all of the hours the associate worked last week.
5

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