A marketing research company tests the effectiveness of three new flavorings for a new sauce using a sample of 30 people, divided randomly into three groups of 10 people each. Group 1 tastes Flavor 1, Group 2 tastes Flavor 2, and Group 3 tastes Flavor 3. Each person is then given a questionnaire that evaluates how enjoyable the beverage was. The scores are shown below. Determine whether there is a perceived significant difference between the three flavorings. Flayor 1 Flavor 2 Flavor 3
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- As part of a study designed to compare hybrid and similarly equipped conventional vehicles, a group tested a variety of classes of hybrid and all-gas model cars and sport utility vehicles (SUVs). Suppose the following data show the miles-per-gallon rating obtained for two hybrid small cars, two hybrid midsize cars, two hybrid small SUVs, and two hybrid midsize SUVs; also shown are the miles per gallon obtained for eight similarly equipped conventional models. Class Type MPG Small Car Hybrid 37 Small Car Conventional 28 Small Car Hybrid 44 Small Car Conventional 32 Midsize Car Hybrid 27 Midsize Car Conventional 23 Midsize Car Hybrid 32 Midsize Car Conventional 25 Small SUV Hybrid 27 Small SUV Conventional 21 Small SUV Hybrid 28 Small SUV Conventional 22 Midsize SUV Hybrid 23 Midsize SUV Conventional 19 Midsize SUV Hybrid 24 Midsize SUV Conventional 18 At the ? = 0.05 level of significance, test for significant effects due to class, type, and…Cincinnati Paint Company sells quality brands of paints through hardware stores throughout the United States. The company maintains a large sales force who call on existing customers and look for new business. The national sales manager is investigating the relationship between the number of sales calls made and the miles driven by the sales representative. Also, do the sales representatives who drive the most miles and make the most calls necessarily earn the most in sales commissions? To investigate, the vice president of sales selected a sample of 25 sales representatives and determined: The amount earned in commissions last month (y) The number of miles driven last month (x1) The number of sales calls made last month (x2) The information is reported below. Commissions ($000) Calls Driven Commissions ($000) Calls Driven 23 68 2,372 39 188 3,291 14 30 2,229 44 218 3,103 34 136 2,733 29 105 2,123 39 180 3,353 38 162 2,794 24 77 2,291 37 154 3,209 47 186 3,451 15 25…Cincinnati Paint Company sells quality brands of paints through hardware stores throughout the United States. The company maintains a large sales force who call on existing customers and look for new business. The national sales manager is investigating the relationship between the number of sales calls made and the miles driven by the sales representative. Also, do the sales representatives who drive the most miles and make the most calls necessarily earn the most in sales commissions? To investigate, the vice president of sales selected a sample of 25 sales representatives and determined: The amount earned in commissions last month (y) The number of miles driven last month (x1) The number of sales calls made last month (x2) The information is reported below. Commissions ($000) Calls Driven Commissions ($000) Calls Driven 22 143 2,375 38 150 3,291 13 132 2,228 45 145 3,103 33 148 2,735 29 147 2,122 39 146 3,354 38 146 2,795 24 142 2,291 38 153 3,213 48 142 3,449…
- The Consumer Reports Restaurant Customer Satisfaction Survey is based upon 148,599 visits to full-service restaurant chains (Consumer Reports website). One of the variables in the study is meal price, the average amount paid per person for dinner and drinks, minus the tip. Suppose the reporter for the Sun Coast Times thought that it would be of interest to her readers to conduct a similar study for restaurants located on the Grand Strand section in Myrtle Beach, South Carolina. The reporter selected a sample of 8 seafood restaurants, 8 Italian restaurants, and 8 steakhouses. The following data show the meal prices ($) obtained for the 24 restaurants sampled. Use a = .05 to test whether there is a significant difference among the mean meal price for the three types of restaurants. Italian Seafood Steakhouse $12 $16 $24 13 18 19 15 17 23 17 26 25 18 23 21 20 15 22 17 19 27 24 18 31The Consumer Reports Restaurant Customer Satisfaction Survey is based upon 148,599 visits to full-service restaurant chains (Consumer Reports website). One of the variables in the study is meal price, the average amount paid per person for dinner and drinks, minus the tip. Suppose a reporter for the Sun Coast Times thought that it would be of interest to her readers to conduct a similar study for restaurants located on the Grand Strand section in Myrtle Beach, South Carolina. The reporter selected a sample of 8 seafood restaurants, 8 Italian restaurants, and 8 steakhouses. The following data show the meal prices ($) obtained for the 24 restaurants sampled. Use a = 0.05 to test whether there is a significant difference among the mean meal price for the three types of restaurants. Please answer the questions in the image.According to the 2017 Corporate Travel Index compiled by Business Travel News, the average daily cost for business travel in the United States rose to $321 per day (Executive Travel website). The file Travel contains sample data for an analogous study on the estimated daily living costs for an executive traveling to various international cities. The estimates include a single room at a four-star hotel, beverages, breakfast, taxi fares, and incidental costs. City Daily LivingCost ($) City 1 242.87 City 2 260.93 City 3 194.19 City 4 260.76 City 5 355.36 City 6 346.32 City 7 165.37 City 8 250.08 City 9 326.76 City 10 283.56 City Daily LivingCost ($) City 11 213.00 City 12 284.08 City 13 139.16 City 14 436.72 City 15 240.87 City 16 310.41 City 17 223.73 City 18 181.25 City 19 238.10 City 20 250.61 (a)Compute the sample mean (in dollars). (Round your answer to the nearest cent.) $______ (b)Compute the sample standard deviation…
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- Since the patients agree to respond, is this considered a voluntary response sample? Justify your answer.A study identified Bridgeport, Connecticut, San Jose, California, Washington, D.C., and Lexington Park, Maryland as the four U.S. cities with the highest percentage of millionaires. The following data show the following number of millionaires for samples of individuals from each of the four cities. Millionaire City Bridgeport, CT San Jose, CA Washington, D.C. Lexington Park, MD Yes 43 34 35 33 No 457 266 365 367 (a) What is the estimate of the percentage of millionaires in each of these cities? (Round your answers to two decimal places.) Bridgeport, CT % San Jose, CA % Washington, D.C. % Lexington Park, MD % Find the value of the test statistic. (Round your answer to three decimal places.) Find the p-value. (Round your answer to four decimal places.) p-value =You work for an insurance company and are studying the relationship between types of crashes and the vehicles involved. As part of your study, you randomly select 3589 vehicle crashes and organize the resulting data as shown in the contingency table. At α=0.10, can you conclude that the type of crash depends on the type of vehicle? Complete parts (a) through (d). Vehicle Type of crash Car Pickup Sport utility Single-vehicle 866 323 340 Multiple-vehicle 1145 487 428 Question content area bottom Part 1 (a) Identify the claim and state the null and alternative hypotheses. H0: The type of crash and the type of vehicle are ▼ independent dependent Ha: The type of crash and the type of vehicle are ▼ dependent independent The ▼ alternative hypothesis null hypothesis is the claim. H0: The type of crash and the type of vehicle are Ha: The type of crash and the type of vehicle are Determine the…