Question: Mrs. Durdana runs a floral gift shop in the Defense area, Karachi. She advertises weekly in the local newspapers and is considering increasing her advertising budget. Before doing so, she decides to evaluate the past effectiveness of these advertisements. Five weeks are sampled, and the advertising expenses against sales volume for each is shown in Table 3.Justify if any linearity exists between sales and advertising using scatter plots.Quantify the linearity between sales and advertising by finding the correlation coefficient value.Develop a regression equation that would help Mrs. Durdana evaluate her sales using the advertising budget.S.No.Sales (PKR 100)Advertising (PKR 100)1.006.004.502.007.305.203.006.204.054.008.007.005.003.503.20NOTE: DO NOT SOLVE ON EXCEL CLASSIFY EACH STEPS

Given: Sample size n = 5 Formula Used: The regression equation Y = a + bX where, Y is dependent…

Answered: Question: Mrs. Durdana runs a floral…

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018

18th Edition

ISBN:9780079039897

Author:Carter

Publisher:Carter

Chapter4: Equations Of Linear Functions

Section4.5: Correlation And Causation

Problem 15PPS

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Question: Mrs. Durdana runs a floral gift shop in the Defense area, Karachi. She advertises weekly in the local newspapers and is considering increasing her advertising budget. Before doing so, she decides to evaluate the past effectiveness of these advertisements. Five weeks are sampled, and the advertising expenses against sales volume for each is shown in Table 3.

Justify if any linearity exists between sales and advertising using scatter plots.
Quantify the linearity between sales and advertising by finding the correlation coefficient value.
Develop a regression equation that would help Mrs. Durdana evaluate her sales using the advertising budget.