28. Price Pol Po 0 C Price Po Pe'l 0 S D D' Price B Po Po- S 2.00 pts D' .D Qo Qo' Quantity 0 Qo' Qo Quantity D S Price S S Po Pe Qe Qo' Quantity 0 Qe' Qe Quantity Refer to the figure above. Which of the four graphs represents the market for movie theater tickets after a reduction in the price of home movie rentals? OA B D
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- 2. An education researcher wishes to determine the extent of relationship of the results between the reading comprehension test (x) and the vocabulary test (y) among 12 students. The data shows the following values: Ex = 76, Ey = 119, Ex^2 = 678, Ey^2 = 1561, Exy = 724. What is the value of r? a. -0.11 b. -0.24 c. 0.25 d. 0.32 3. Given: X = 49, X = 52, s = 2.1. What is the coefficient of skewness (sk)? a. -4.29 b. -1.43 c. 1.43 d. 4.29 4. A survey of 40 men regarding their shoe sizes (x) and their heights (y) were obtained. What is the likely height of a man with a shoe size of 10 based on the obtained regression equation, y = 130.4+ 4.7x? a. 177.4 cm b. 182.1 cm c. 186.8 cm d. 190.3 cm(2) Based on the graph, describe the pattern of customer visits in store A and store B, respectively (4) If you are a manager from the company headquarters, how would you allocate the personnel resources to store A and store B, respectively***..* ..... .. ... . ... The value y (in 1982-1984 dollars) of each dollar paid by consumers in each of the years from 1994 through 2008 in a country is represented by the ordered pairs. (1994, 0.676) (1996, 0.638) (1998, 0.615) (2000, 0.584) (2002, 0.561) (2004, 0.528) (2006, 0.498) (2008, 0.459) (1995, 0.652) (1997, 0.620) (1999, 0.603) (2001, 0.562) (2003, 0.538) (2005, 0.512) (2007, 0.485) (a) Use a spreadsheet software program to generate a scatter plot of the data. Let t = 4 represent 1994. Do the data appear linear? O Yes O No (b) Use the regression feature of the spreadsheet software program to find linear model for the data. (Let t represent time. Round your numerical values to four decimal places.) y = (c) Use the model to predict the value (in 1982-1984 dollars) of 1 dollar paid by consumers in 2010 and in 2011. (Round your answers to two decimal places.) 2010 24 2011 24 Discuss the reliability of your predictions based on your scatter plot and the graph of your linear…
- Suppose the table below lists the price and consumption levels of food and clothing during 2015 and 2020, where 2015 reflects the base year relative to current prices in 2020. Year Prices Consumption Food Clothing Food Clothing 2015 2675 9480 500 300 2020 2250 11560 650 260 1.1 State the formulas for a Laspeyres Index and Paasche Index given the data provided. (Hint: Refer to the definitions} (2) 1.2 Based on your answer in Q1.1, calculate (a) the Laspeyres Index and (b) the Paasche Index. (3)10. From the following data of the daily wage of 500 workers of a factory find the number of workers : (a) whose wages are more than Rs. 370 but not more than Rs. 400. (b) whose wages are less than Rs. 370 but not less than Rs. 350. 0412 Wages not exceeding Rs. 300 = 150 workers Wages not exceeding Rs. 350 = 180 workers Wages not exceeding Rs. 400 = 240 workers Wages not exceeding Rs. 450 = 400 workers Wages not exceeding Rs. 500 = 500 workersdo orw atnebuteHandgun-Related Accidents of 09 40 30 40 08 09 3. The graph shows the number of handgun-related accidents statewide versus the number. of handgun registrations The line of best fit for the data is also shown, Based on th e ne of best fit, everyy10,000 handgun registrations is associated with approx atelybewmany handgun-related accidents! XError PSDA Practic M.
- An individual’s income varies with his or her age. The following table shows the median income I of males of different age groups within the United States for 2012. For each age group, let the class midpoint represent theindependent variable, x. For the class “65 years and older,” we will assume that the class midpoint is 69.5. (a) Use a graphing utility to draw a scatter diagram of thedata. Comment on the type of relation that may existbetween the two variables.(b) Use a graphing utility to find the quadratic function ofbest fit that models the relation between age and medianincome.(c) Use the function found in part (b) to determine the age atwhich an individual can expect to earn the most income.(d) Use the function found in part (b) to predict the peakincome earned.(e) With a graphing utility, graph the quadratic function ofbest fit on the scatter diagram.=48 New Bank (NB) believes that there is a relationship between the kilometres (KM) travelled by its customers and the charges on their credit cards (CC). The bank collected the data given in Table NB Table NB Dollars (US$'00) 18 Kilometres ('00) 12 24 13 20 14 25 17 23 18 23 20 30 21 34 22 31 24 37 24 If a credit card holder should spend US$2.300 on a business trip, how many kilometres would you expect her to travel (to the nearest whole number)? Select one: O a 3,483 O b 1.583 OC. 950 od. 850 11:10 AM 85°F a Q) ENG 12/16/2021 hp EliteBook 8470p Ftay postitve insert pause break scroll 16 D f7 f8 f9 O f10 3 f11 f12 prt sc wm,./
- The authors of a paper studied patients who had been diagnosed with stage 2 multiple myeloma prior to the age of 50. For each patient who received high dose chemotherapy, the number of years that the patient lived after the therapy (survival time) was recorded. The cumulative relative frequencies in the accompanying table were approximated from survival graphs that appeared in the paper. Years Survived 0 to <2 2 to <4 4 to <6 6 to <8 8 to <10 10 to 12 12 to <14 14 to 16 Cumulative Relative Frequency 0.10 0.52 0.54 0.61 0.68 0.70 0.82 1.00 (a) Use the given information to construct a cumulative relative frequency plot.Q.2: Mr. Ahmed is planning to recruit some additional sales staff for his company Al Khalif LLC. Since the sale varies from time to time, he decided to recruit staff if average sales is more than RO 35000. Following are the details of his company's sales for past 50 days. Sales 00- 10-20 20-30 30-40 40-50 50-60 60-70. 70- ('000RO) 10 80 No. of 05 07 10 05 08 05 05 05 days a) What would you suggest Mr. Ahmed regarding recruitment of sales staff? Give reason for your answer. b) What is the mode sale of the company? Why do you calculate mode sales?You want to know if relationship between Private Attorney and Amount is consistent for females and males Amount vs. Gender Hint: Graph > Graph Bullder; Drag and drop Amount in Y, Gender in X, and Private Attorney in Group X. Click on the box plot icon at the top. Or, right-click in the graph and select Points > Change Private Attormey Not Private Private Overlay 000000 Color to > Box Plot. What is your conclusion? Interval 700000 O Amount O l a private atorney was used the payout was generaly higher for both male and female patients O Ita private attorney was used the payout was generally lower for male and higher for temale patients 500000 ADOD00 O fa private atnorney was used the payout wan generaly lower for both male and temale patients 300000 OHa pivate attorney was used the payout was generaly higher for male and kower for fermale patients 200000 100000 Femee Mae Femaie Mae Gender Question 9
