Protein Food Type Fat (units) (units) A 20 15 10 20 Minimize Z = P2x + P4y

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Full data set O Uncarpeted 13.2 A researcher wanted to determine if carpeted rooms contain more bacteria than uncarpeted rooms. The table shows the results for the number of bacteria per cubic foot for both types of rooms. Carpeted 10.7 14.3 11 6.7 12.8 10 8.4 12.2 9.2 11.1 6.7 11.3 14.1 13.6 8.9 Determine whether carpeted rooms have more bacteria than uncarpeted rooms at the g = 0.05 level of significance. Normal probability plots indicate that the data are approximately normal and boxplots indicate that there are no outliers. State the null and alternative hypotheses. Let population 1 be carpeted rooms and population 2 be uncarpeted rooms. A. Ho: H1 = H2 H1: 41> H2 O B. Ho: H1 = H2 O C. Ho: H1 = H2 H1: H1 H2 Determine the P-value for this hypothesis test. P-value = (Round to three decimal places as needed.)

Floor Space (sq. ft.) 6,060 5,230 4,280 5,580 5,670 5,020 5,410 4,990 4,220 4,168 4,870 5,470 weekly Sales (dollars) 16,380 14,400 13,820 18,230 14,200 12,800 15,840 16,610 13,610 10,050 15,320 13,270 A Click here for the Excel Data File (a) Using the table above, select the most appropriate scatter plot from the given cholces. Scatter Plot A Scatter Plot B Scatter Plot C Floor Space and We ekly Sales Floor Space and Weekly Sales Floor Space and We ekly Sales 20,000 18,000 16,000 14.000 12.000 10,000 8,000 6,000 4,000 2,000 20,000 18,000 16,000 14,000 12.000 10,000 8,000 6,000 4.000 2,000 20,000 18,000 16,000 14,000 12,000 10,000 8,000 6,000 4,000 2,000 1,000 2,000 3,000 4,000 5,000 6,000 7,000 1,000 2,000 3,000 4,000 5,000 6,000 7,000 1,000 2,000 3,000 4,000 5,000 6,000 7,000 FLOOR SPACE FLOOR SPACE FLOOR SPACE O Scatter Plot A O Scatter Plot B O Scatter Plot C (b) Define the relationship between X and Y. (You may select more than one answer. Click the box with a check mark for the…

Exhibit 14-25 You are given the following information about x and y. Independent Variable Dependent Variable 0.321 -0.321 Refer to Exhibit 14-25. The least squares estimate of b₁ (slope) equals -5.78 3 7 1.56 3 6 7 8 6 7 3 8

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Volume (litres) 1.5 < 2.0 2.0 < 2.5 2.5 < 3.0 3.0 < 3.5 Σ Runners 8 28 17 7 60 Question 1 What percentage of runners consume more than 2.5 litres of water during the ultra marathon?