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- The vintage Restaurant is located on Captiva Island, a resort community located near Fort Meyers, Florida. The restaurant, which is owned and operated by Karen Payne, has just completed its third year of operation. During this time, Karen sought to establish a reputation for the restaurant as a high-quality dining establishment that specializes in fresh seafood. The efforts made by Karen and her staff have proved successful, and her restaurant has become one of the best and fastest-growing restaurants on the island. Karen has just concluded that to plan better for the growth of the restaurant in the future, it is necessary to develop a system that will enable her to forecast food and beverage sales by the month for up to 1 year in advance. Karen has the following data available on the total food and beverage sales that were realized during the previous 3 years of operation. Food and Beverage Sales for the Vintage Restaurant ($1000s) Month First Year Second Year Third YearJanuary 242…According to the American Management Association, most U.S. companies now test at least some employees and job applicants for drug use. The U.S. National Institute on Drug Abuse claims that about 15% of people in the 18-25 age bracket use illegal drugs. Allyn Clark, a 21 year-old college graduate, applied for a job at the Acton Paper Company, took a drug test, and was not offered a job. He suspected that he might have failed the drug test, even though he does not use drugs. In checking with the company's personnel department, he found that the drug test has 99% sensitivity, which means that only 1% of drug users incorrectly test negative. Also, the test has 98% specificity, meaning that only 2% of nonusers are incorrectly identified as drug users. Allyn felt relieved by these figures because he believed that they reflected a very reliable test that usually provides good results. But is this really true? The accompanying table shows data for Allyn and 1,499 other job applicants. Based…A real estate investment trust (REIT) owns first-class office properties in selected markets. According to its website, the occupancy rates last year for its holdings in four major cities are available below. Complete parts a through c below.
- Whattheareaofthefigurewhatthehelldjsellprice listprice LIVINGAREA ROOMS BEDRMS BATHRMS AGE ACRES TAXES 710.00 800 28 10 5 3 60 0.28 3167 875.00 900 18 8 4 1 12 0.43 4033 645.00 660 13 6 3 1 41 0.33 1471 690.00 700 17 7 3 1 22 0.46 3204 1160.00 1200 25 8 4 3 5 2.05 3613 675.00 700 18 7 4 3 9 0.57 3028 750.00 800 20 8 4 3 18 4.00 3131 1035.00 1125 22 8 4 2 16 2.22 5158 1355.00 1425 30 10 5 2 30 0.53 5702 445.00 450 10 5 3 1 43 0.30 2054 765.00 785 22 8 3 3 18 0.38 4127 432.50 450 16 7 3 1 50 0.65 1445 1170.00 1190 25 8 4 2 2 1.61 2087 527.50 580 20 8 4 1 13 0.22 2818 875.00 900 22 8 4 2 15 2.06 3917 825.00 850 17 8 4 2 33 0.46 2220 830.00 850 23 9 4 2 37 0.27 3498 680.00 700 19 7 3 1 22 0.63 3607 740.00 800 17 7 3 2 13 0.36 3648 755.00 765 19 8 4 2 24 0.34 3561 900.00 950 24 9 4 2 10 1.55 4681 1465.00 1525 26 8 4 3 6 0.46 7088 835.00 850 20 9 4 2 46 0.46 3482 950.00 965 22 9 5 2 37 0.48 3920 920.00 950 21 9 5 2 27 1.30 4162 785.00 825 20 8 4 2 7 0.30 3785 550.00 575 16…sellprice listprice LIVINGAREA ROOMS BEDRMS BATHRMS AGE ACRES TAXES 710.00 800 28 10 5 3 60 0.28 3167 875.00 900 18 8 4 1 12 0.43 4033 645.00 660 13 6 3 1 41 0.33 1471 690.00 700 17 7 3 1 22 0.46 3204 1160.00 1200 25 8 4 3 5 2.05 3613 675.00 700 18 7 4 3 9 0.57 3028 750.00 800 20 8 4 3 18 4.00 3131 1035.00 1125 22 8 4 2 16 2.22 5158 1355.00 1425 30 10 5 2 30 0.53 5702 445.00 450 10 5 3 1 43 0.30 2054 765.00 785 22 8 3 3 18 0.38 4127 432.50 450 16 7 3 1 50 0.65 1445 1170.00 1190 25 8 4 2 2 1.61 2087 527.50 580 20 8 4 1 13 0.22 2818 875.00 900 22 8 4 2 15 2.06 3917 825.00 850 17 8 4 2 33 0.46 2220 830.00 850 23 9 4 2 37 0.27 3498 680.00 700 19 7 3 1 22 0.63 3607 740.00 800 17 7 3 2 13 0.36 3648 755.00 765 19 8 4 2 24 0.34 3561 900.00 950 24 9 4 2 10 1.55 4681 1465.00 1525 26 8 4 3 6 0.46 7088 835.00 850 20 9 4 2 46 0.46 3482 950.00 965 22 9 5 2 37 0.48 3920 920.00 950 21 9 5 2 27 1.30 4162 785.00 825 20 8 4 2 7 0.30 3785 550.00 575 16…
- Jerry's sister, Colleen, is a Philadelphia-based accountant, and much of her work has her auditing retail companies—literally showing up unannounced—to confirm their in-house inventory matches what their inventory software and tax filings claim. If she finds evidence to suggest there are widespread discrepancies between physical in-store inventory and what's shared with the Internal Revenue Service via inventory reports, she informs the IRS that a more thorough audit is warranted. Assume Colleen is auditing a company that maintains separate records for 4500 different items, 4400 of which are accurate and 100 of which are inaccurate. Rather than examining all 4500 records, Colleen arbitrarily samples 100 of them (without replacement). Let X be the random variable counting the number of inaccurate record found among all 100 samples, assuming all samples are equally likely. What is p_X(x), which is the probability mass function of X as defined above. verify the value of p_X(5) out to…the internal revenue Service (irS) provides a toll-free help line for taxpayers to call inand get answers to questions as they prepare their tax returns. in recent years, the irShas been inundated with taxpayer calls and has redesigned its phone service as well asposted answers to frequently asked questions on its website (the Cincinnati Enquirer,January 7, 2010). according to a report by a taxpayer advocate, callers using the newsystem can expect to wait on hold for an unreasonably long time of 12 minutes beforebeing able to talk to an irS employee. Suppose you select a sample of 50 callers afterthe new phone service has been implemented; the sample results show a mean waitingtime of 10 minutes before an irS employee comes on the line. based upon data from pastyears, you decide it is reasonable to assume that the standard deviation of waiting timeis 8 minutes. using your sample results, can you conclude that the actual mean waitingtime turned out to be significantly less than the…Johnson Filtration, Inc. provides maintenance service for water-filtration systems. Suppose that in addition to information on the number of months since the machine was serviced and whether a mechanical or an electrical repair was necessary, the managers obtained a list showing which repairperson performed the service. Repair Time(hours) Months SinceLast Service Type ofRepair Repairperson 2.9 2 electrical Dave Newton 3.0 6 mechanical Dave Newton 4.8 8 electrical Bob Jones 1.8 3 mechanical Dave Newton 2.9 2 electrical Dave Newton 4.9 7 electrical Bob Jones 4.2 9 mechanical Bob Jones 4.8 8 mechanical Bob Jones 4.4 4 electrical Bob Jones 4.5 6 electrical Dave Newton Ignore for now the months since the last maintenance service (x1 ) and the repairperson who performed the service. Develop the estimated simple linear regression equation to predict the repair time (y) given the…
- Company Competitor 1383 1153 2022 1067 2429 1296 901 1406 2219 1254 1896 1335 1910 1204 1539 1076 2048 1246 2881 1098 2395 1258 1349 955 2052 954 2675 1363 1588 1022 2704 1155 3148 1807 2822 1295 2217 1116 2260 1323 3040 1326 3137 1107 2977 1163 2599 1254 2412 1017 3187 938 2598 1270 2995 1042 3046 1318 3858 1497 2438 750 3243 1380 2764 1053 2944 932 3324 1097 2797 1193 3914 1271 2766 843 2273 780 3052 1095 3202 1290 3672 937 3957 1390 3274 1056 3788 1235 3502 1235 2942 999 3078 1066 3196 641 3141 1322 3579 1289 3895 1060 above is the excel data, please solve the excel part with formulas and explanation, thanksDave Fletcher, the general manager of North Carolina Engineering Corporation (NCEC), thinks that his firm’s engineer-ing services contracted to highway construction firms are directly related to the volume of highway construction business contractedwith companies in his geographic area. He wonders if this is reallyso, and if it is, can this information help him plan his operationsbetter by forecasting the quantity of his engineering servicesrequired by construction firms in each quarter of the year? Thefollowing table presents the sales of his services and total amountsof contracts for highway construction over the past eight quarters: a) Using this data, develop a regression equation for predictingthe level of demand of NCEC’s services. b) Determine the coefficient of correlation and the standard errorof the estimate.You may need to use the appropriate technology to answer this question. Suppose an institution categorizes colleges and universities on the basis of their research and degree-granting activities. Universities that grant doctoral degrees are placed into one of three classifications: moderate research activity, higher research activity, or highest research activity. The classifications for public and not-for-profit private doctoral degree-granting universities are summarized in the following table. Type ofUniversity Classification ModerateResearchActivity HigherResearchActivity HighestResearchActivity Public 28 71 96 Private 48 26 49 Test the hypothesis that the population proportions of public universities are equal in each classification category. Use a 0.05 level of significance. Find the value of the test statistic. (Round your answer to two decimal places.) Find the p-value. (Round your answer to four decimal places.) p-value =