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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he North American Free Trade Agreement (NAFTA) enacted in 1994 is a trilateral trade agreement signed by the United States, Canada and Mexico. This trade agreement has been controversial since its inception and Americans remain split on the issue. In a Gallup Poll conducted February 1-5, 2017, 420 out of 912 randomly selected Americans aged 18 or older stated that they believed that NAFTA was bad for the United States. Find the point estimate for the proportion of Americans who believe that NAFTA was bad for the United States. Round your answer to 4 decimal places. Find the margin of error for a 95% confidence interval. Round your answer to 4 decimal places. Construct the 95% confidence interval for the proportion of Americans who believe that NAFTA was bad for the United States. Enter your answer as an open interval of the form (a,b) and round to 3 decimal places. Can you conclude that more than half of Americans believe that NAFTA was bad for the United States? No conclusions can…
1. The percentage of 12- to 17-year-olds who reported talking at least once in the past year with their parents about the dangers of drug, tobacco, or alcohol is 60% nationally. A state youth council believes this proportion is higher in their state, where there has been an intense media campaign about this issue. A survey of randomly chosen students from across the state shows 1032 of 1642 students reporting they are having these conversations with their parents. Is there evidence that the percent of students using drugs, tobacco or alcohol in this state is above the national rate?
A study of Brown Bag Company's payment practices showed that the company pays its vendors 20 days after the accounting department receives the invoice. The standard deviation is 5 days. Assuming that there is a normal distribution across the company's payments, what percent of the invoices are paid within 15 days of receiving them? Based on your answer, recommend an effective payment strategy for the company.
According to the research on marital dissolution (break-up), what value orientation is the most common for those countries where divorce rates are highest?
13) In a clinical study of an allergy drug, 115 of the 260 subjects reported experiencing significant relief from their symptoms. From the data, a 90% C.I. for the percentage of all subjects reported experiencing significant relief from their symptoms is (,blank ), blank (round to the 3rd decimal place).
Based on information from Harper's Index, 37 out of a random sample of 100 adult Americans who did not attend college believe in extraterrestrials. However, out of a random sample of 100 adult Americans who did attend college, 47 claim that they believe in extraterrestrials. Does this indicate that the proportion of people who attend college and who believe in extraterrestrials is higher than the proportion who did not attend college? (a) State the hypotheses in plain language. (b) Fill in the table below, then enter this table in the left side of the Rossman-Chance applet. No college College Total Believe in ETs 84 Did not believe in ETs 116 Total 100 100 200 (c) Compute the point estimate for the difference in the proportion believing in extraterrestrials between those not attending college and those attending college. Pne – Pe = (d) Complete at least 1000 simulations in the Rossman-Chance app 2 and report your findings below. (For help with the applet, refer to the e "Using the…
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)
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An Associated Press story in Easton, Maryland’s The Star Democrat on June 3, 2010 reported thatAll told, scam artists are believed to have stolen about $47 billion from Medicare in the 2009 fiscal year, nearly triple the toll a year earlier. Medicare spokesman Peter Ashkanaz said that…charges have been filed against 103 defendants in cases involving more than $100 million in Medicare fraud.(a) What percentage of the Medicare fraud has been targeted by filed charges?(b) What is the average claim in each fraud charge?(c) How many of these average size claims would need to be filed to recover the entire $47 billion?

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