case16.xlsx - A-L Ads(X Customer(Y 5 353 6 3 2 4 2 4 2 4 2 7 5 4 7 2 5 319 440 332 172 331 344 483 329 532 496 393 376 372 512 254 5 459 2 153 1 426 6

case16.xlsx - A-L Ads(X Customer(Y 5 353 6 3 2 4 2 4 2 4 2...

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Unformatted text preview: A-L Ads (X) Customer(Y) 5 353 6 3 2 4 2 4 2 4 2 7 5 4 7 2 5 319 440 332 172 331 344 483 329 532 496 393 376 372 512 254 5 459 2 153 1 426 6 566 6 5 6 3 2 7 596 395 676 194 135 367 This Is an Independent Assignmen For Those Whose Last Name Starts w The manager of Colonial Furniture has been reviewing w advertising expenditures. During the past 6 months, all advertisements for the store have appeared in the local newspaper. The number of ads per week has varied from seven. The store's sales staff has been tracking the numb customers who enter the store each week. The number o and the number of customers per week for the past 26 w were recorded. a). Determine the sample regression line. ( 3 marks) b). Find and interpret the coefficient of determination. (2 marks c). Find and interpret the y-intercept. (2 marks) d). Find and interpret the slope of the regresion line. (2 marks) Page 1 A - L interpret the slope of the regresion line. (2 marks) d). Find and e). Predict the number of customers enter the store if the mana decides to put up 12 ads in the future. (1 mark) Page 2 A-L ent Assignment Name Starts with A to L has been reviewing weekly he past 6 months, all appeared in the local week has varied from one to een tracking the number of h week. The number of ads week for the past 26 weeks ne. ( 3 marks) determination. (2 marks) 2 marks) egresion line. (2 marks) Page 3 egresion line. (2 marks) A-L nter the store if the manager (1 mark) Page 4 Work Experience (X) Salary Received (Y) 15 20 10 16 2 14 3 16 10 2 13 2 8 10 11 18 12 15 5 15 $60 $40 $50 $50 $55 $55 $60 $57 $58 $60 $60 $62 $62 $62 $62 $62 $65 $66 $24 $66 This Is an Independent Assign For Those Whose Last Name Sta The HR department in a company is preparing for performance evaluation event. The manager of H some information about employees' number of y and the salary they are currently receiving. a). Determine the sample regression line. (3 marks) b). Find and interpret the coefficient of determination. c). Find and interpret the y-intercept. (2 marks) d). Find and interpret the slope of the regresion line. (2 e). Predict the amount of bonus received if a worker ha work experience. (1 mark) e). Predict the amount of bonus received if a worker ha work experience. (1 mark) pendent Assignment Last Name Starts with M to R mpany is preparing for its nt. The manager of HR has gathered ployees' number of years of service ently receiving. ssion line. (3 marks) cient of determination. (2 marks) rcept. (2 marks) of the regresion line. (2 marks) s received if a worker has 25 years of s received if a worker has 25 years of Floor (X) Price (Y) 22 20 16 4 18 18 21 13 14 8 4 2 16 13 12 8 21 7 8 8 23 21 10 9 15 1 27 8 27 212 225 261 184 232 222 210 201 189 200 203 196 220 245 211 216 256 173 194 196 182 230 216 188 210 216 218 169 235 This Is an Independent Assignment For Those Whose Last Name Starts with S Florida condominiums are popular winter retreats for many Nor Americans. In recent years, the prices have steadily increased. A estate agent wanted to know why prices of similar-sized apartm the same building vary. A possible answer lies in the floor. It may the higher the floor, the greater the sale price of the apartment recorded the price (in $1,000s) of 1,200 sq. ft. condominiums in buildings in the same location that have sold recently and the flo number of the condominium. a). Determine the sample regression line. (3 marks) b). Find and interpret the coefficient of determination. (2 marks) c). Find and interpret the y-intercept. (2 marks) d). Find and interpret the slope of the regresion line. (2 marks) e). Predict the sale price for the condominium unit with a floor number of 30. (1 mark) e). Predict the sale price for the condominium unit with a floor number of 30. (1 mark) ssignment e Starts with S to Y etreats for many North steadily increased. A real similar-sized apartments in ies in the floor. It may be that ice of the apartment. He ft. condominiums in several d recently and the floor rks) nation. (2 marks) line. (2 marks) nit with a floor number nit with a floor number ...
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