Practice Set The Spar in Muscat mall have recently we can the checkout cute The camere data on various aspects of a product, for instance, price, sumber of units old and whether types was camied for that is doing the Spor management cate whether on promotional activities (if any) love any effet ces of product Promotional activities we mainly of the types distributed outside the store online displays at the end of an isle the customer's went to the said dost Display Data was collected on 40 different brand of food & beverage products for the month of May 2012, including sales number of it sollice exi, in OMR flyer (X2. 1 if product was promoted through you and display ox3.1 if a special display of the product was used on As a preliminary i ple linear regression model was fimed to check the effect of price sales. Part of the Region RSquare59.74 a) Express the coresponding regression model b) Interpret the slope coefficie Suppose HyperCity is long as bevege hand which is priced OMRK What will be the predicted ? d) The proportion of variability sales that is not accounted for by price TradFalseThe com coicit betw.com price and ale is 0.773 Test whether sales have a linear aveciation with price 15 ficance level a: Test site-014-0.006-25 c. Based on the patur (00099) bed, what will you conclude the context of the pen d. Now, the prediction there were added to the date de linear regression model was e Part of the R is shown below Ad RS- iExpress the stron medel 1. Bere the collar and Deplay is the most of the problem Calculate a confidence meal of Flyer and interpect de me in the eest of the problem. Can we say that promoting product this significantly affectie in. What is the code of multiple determinate of this model Internet its value Suppose you want to whether Price has a perfect Sales controlling for her and Deplay Carry dan pred state your coche context of the