AlignmentFontClipboardfeL2EG.H.KA.C DProblem: Customers are complaining about sandwich leagthYou are the owner of three local sandwich shops. Recently you've received complaints fromcustomers that their "footlong" sub sandwiches were les than 12 inches long. As a measure of1quality assurance, data was collected on all footlong sub sondwiches made over the pcriod of anhour at cach store. Determined which, if any, of your stores are making sub sandwiches that aresignificantly shorter than 12 inches. You will conduct three t-tests, one for coch store. You want46.to be 95% confident in your recults. (Note. This case is inspired by reality. Scarch the internet for"claims over footlong sub' for a historical perspective and how a company used statistics toincure consistent quality.)171011 SandwicL Measuremeat:12 Store 1 Store 2 Store 3StatisticsStore 1 Store 2 Store 3138.83.19.0Somple SizeMean (length)1411.411.612.51513.413.415.1VarianceStandard Deviation1611.311.414.31710.110.310.81812.412.4Hypothesized Mean (M)Difference in Means (X - M)Stondard Error13.81910.410.611.2208.99.23.12110.411.1T-Statistic2211.814.0Degrees of Frcedom2312.814.3249.38.7P-value P(T=t) two-tail2512.613.7"Remomberthat the T.DIST.2T) Function requiror the t-statirkic arqumont ta be an abralute value, nat a noqativo value,2611.712.92711.813.0or an orror uill occur.283.710.22912.614.1308.6Interpret the Reselts8.61. What is the null hypothesis for these teste?2. What is the alternative hypothesis for these teste?3. Given the desired confidence level, whst alpha should be used?4. Can you say with 95% confidence that Store 1 is producing sub3114.6[select][select]3211.033[select]34candwiches with an average length that is less than 12 inchcs?5. Can you say with 95% confidence that Store 2 is producing sub35[select]36sandwiches with an average length that is less than 12 inches?6. Con you say with 95% confidence that Store 3 is producing subcondwiches with an average length that is less than 12 inches?37[sclect]3839[sclect]GlossaryCase 1Case 2Sandwich ShopReadyP Type here to search耳|

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We are asked to conducted three t-tests for each store. The objective is to test if your stores are…

Math

Statistics

Problem: Cestomers are complaining about sandwich leagth You are the owner of three local sondwich shops. Recently you've received complaints from customers that their "footlong" sub sandwiches were less than 12 inches long. As a measure of quolity acsurance, data was collected on all footlong sub sondwiches made over the period of an hour at cach store. Determined which, if any, of your stores are making sub sondwiches that are significantly shorter than 12 inches. You will conduct three t-tests, one for cach store. You want to be 95% confident in your reculto. (Note. This case ic inspired by reality. Scarch the internet for "claims over footlong sub' for a historical perspective and how a company used statistics to incure consistent quality.) Sandwich Measurements Store 1 Store 2 Store 3 Statistics Store 1 Store 2 Store 3 8.8 9.1 9.0 Somple Size Mean (length) 11.4 11.6 12.5 13.4 13.4 15.1 Variance 11.3 11.4 14.3 Standard Deviation 10.1 10.3 10.8 12.4 12.4 13.8 Hypothesised Meon (M) Difference in Means (2 - M) 10.4 10.6 11.2 8.9 3.2

Problem: Cestomers are complaining about sandwich leagth You are the owner of three local sondwich shops. Recently you've received complaints from customers that their "footlong" sub sandwiches were less than 12 inches long. As a measure of quolity acsurance, data was collected on all footlong sub sondwiches made over the period of an hour at cach store. Determined which, if any, of your stores are making sub sondwiches that are significantly shorter than 12 inches. You will conduct three t-tests, one for cach store. You want to be 95% confident in your reculto. (Note. This case ic inspired by reality. Scarch the internet for "claims over footlong sub' for a historical perspective and how a company used statistics to incure consistent quality.) Sandwich Measurements Store 1 Store 2 Store 3 Statistics Store 1 Store 2 Store 3 8.8 9.1 9.0 Somple Size Mean (length) 11.4 11.6 12.5 13.4 13.4 15.1 Variance 11.3 11.4 14.3 Standard Deviation 10.1 10.3 10.8 12.4 12.4 13.8 Hypothesised Meon (M) Difference in Means (2 - M) 10.4 10.6 11.2 8.9 3.2

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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