3. An advertising agency conducted a survey and found that the number of units sold, N , depends on the amount a, spent on advertising (in dollars). The following table gives the amount spent on advertising and the number of units sold accordingly. Source: The Nature of Mathematics, 10e, Smith, K.J. Amount Spent (S) Number of Units Sold 1000 ubyos 3,572 3,902 4,055 3000 5000 7000 4,156 Using a calculator, makea scatter plot of the data, where x represents the amount of money spent. Using your calcu lator, find the logarithmic regression (LnReg) that models this situation. Call this equation N(a), and round values to the nearest whole number. а. 2 According to the model N(a), how many units are sold if $8,000 is spent on advertising? b. Using the model N(a), algebraically determine how much money needs to be spent on advertising in order to sell 5,000 units. You may check your answer graphically. с. Fall 2019 350

3. An advertising agency conducted a survey and found that the number of units sold, N , depends on the amount a, spent on advertising (in dollars). The following table gives the amount spent on advertising and the number of units sold accordingly. Source: The Nature of Mathematics, 10e, Smith, K.J. Amount Spent (S) Number of Units Sold 1000 ubyos 3,572 3,902 4,055 3000 5000 7000 4,156 Using a calculator, makea scatter plot of the data, where x represents the amount of money spent. Using your calcu lator, find the logarithmic regression (LnReg) that models this situation. Call this equation N(a), and round values to the nearest whole number. а. 2 According to the model N(a), how many units are sold if $8,000 is spent on advertising? b. Using the model N(a), algebraically determine how much money needs to be spent on advertising in order to sell 5,000 units. You may check your answer graphically. с. Fall 2019 350

College Algebra

1st Edition

ISBN:9781938168383

Author:Jay Abramson

Publisher:Jay Abramson

Chapter9: Sequences, Probability And Counting Theory

Section9.5: Counting Principles

Problem 5SE: Answer the following questions. 5. What is the term for the arrangement that selects r objects from...

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