Example 20.18 The price relatives and weights of a set of commodities are given in the following table: Commodity C₁ C₂ C3 C₁ Price relative 120 127 125 119 Weight 2W₁ W ₂ W₁ W₂+3 If the index for the set is 122 and the sum of the weights is 40, find W, and W₂.
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- 9. Higher Order Thinking Stations 1, 2, and 3 are bus stations. The equation y = 160x represents the number of people that go to Station 1, where y is the total number of people and x is the number of hours since opening. The table shows the same relationship for Station 2, and the graph shows the relationship for Station 3. Station 2 Hours Since Opening, x Total Number of People, y 2 3 4 5 326 489 652 815 ved after w weeks. a. Which station has the greatest number of people arrive per hour? Total Number of People ty 1,500 1,200 900 600 300 Station 3 (4,772) 0 0 2 4 6 8 Time Since Opening (hours) b. What is the total number of people who have gone to a bus station after 4 hours?To figure out how many employees you will have out at a time, you decide to start keeping track of the number of initially infected people, the number of newly infected people and the total number of infected people each day. The data for Days 1-6 is recorded in the table below. Day Number of initially infected people Number of newly infected people Total number of infected people 1 0 2 3 2 2 4 4 4 4 g 5 8 8 16 6 13 29 مااPlease answer the attached question, including all parts I - IV, with as much explanation as possible. Thank you.
- 2. What features V Good Presentation Bad Presentation of the 'Good Minimum Wage Minimum Wage $ 1960: $1.00 Presentation' 1970: $1.60 make it better than the ' Bad 2 1980: $3.10 1990: $3.80 1960 1970 1980 1990 Presentation'? A. Bad Presentation V Good Presentation Quarterly Sales Quarterly Sales 2. 200 %24 50 100 Q1 Q2 Q3 04 01 02 03 04 B. w 26°C ヘ 25Q3B All Fresh Seafood is a wholesale fish company based on the east coast of the U.S. Catalina Offshore Products is a wholesale fish company based on the west coast of the U.S. Table #9.2.5 contains prices from both companies for specific fish types ("Seafood online," 2013) ("Buy sushi grade," 2013). Data is in following table: Fish All Fresh Seafood Prices Catalina Offshore Products Prices Cod 19.99 17.99 Tilapi 6.00 13.99 Farmed Salmon 19.99 22.99 Organic Salmon 24.99 24.99 Grouper Fillet 29.99 19.99 Tuna 28.99 31.99 Swordfish 23.99 23.99 Sea Bass 32.99 23.99 Striped Bass 29.99 14.99 Do the data provide enough evidence to show that a west coast fish wholesaler is more expensive than an east coast wholesaler? Test at the 5% level. (iv) Determine sample mean of differences x⎯⎯div Determine sample mean of differences x¯d Enter in decimal form to nearest ten-thousandth. Examples of correctly…This graph is from a study evaluating an opioid drug and gender on pain levels. Which of the following effects are present? 10 6 Imale 4 W female drug placebo One main effect, no interaction effect O One main effect and interaction effect Both main effects, no interaction effect Both main effects and interaction effect No main effects and no interaction effect No main effects and interaction effect O O
- The owner of a skating rink rents the rink for parties at $800 if 40 or fewer skaters attend, so that the cost per person is $20 if 40 attend. For each 5 skaters above 40, she reduces the price per skater by $0.50. (a) Construct a table that gives the revenue generated if 40, 50, and 60 skaters attend. No. of skaters Total Revenue 40 50 60 20 19 18 Price per Skater $800 $950 $ 1080 (b) Does the owner's revenue from the rental of the rink increase or decrease as the number of skaters increases from 40 to 60? lo The revenue increases. The revenue decreases. (c) Write the equation that describes the revenue for parties with x groups of five skaters more than 40 skaters. R(x) = (20-0.5x) (40+5x) (d) Find the number of skaters that will maximize the revenue. skaters (e) Find the maximum revenue. $ (f) When the revenue is at the maximum possible, what price is paid per skater? $An advertisement for a marketing firm shows how the company's work affected sales for a customer. Which conclusions can be made? Select all that apply. Sales per Campaign 2000 1800 1600 1400 1200 1000 800 600 400 200 1 2 3 4 5 6 7 8 9 10 11 Advertising Campaigns © 2019 Glynlyon, Inc. O Each ad campaign generates the same increase. O The biggest increase is seen in the first two campaigns. O There are no sales increases after the seventh or eighth campaigns. O Sales increases slow with more campaigns. O The marketing firm will raise sales for all companies. Number of Units SoldDescribe the meaning of the following geometric diagram for a 2-variable statistical model: M 20.0 80.0 80.0 20.0 F The two explanatory variables are non-orthogonal and the model with both variables is about the same as the model with just one. The two explanatory variables are orthogonal The two explanatory variables are non-orthogonal and the model with just one variable is nearly as good as the model with both. The two explanatory variables are non-orthogonal and the model both variables is about the same as the model with just one.