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Author Question: Regression analysis was applied between demand for a product (y) and the price of the product (x), ... (Read 122 times)

Awilson837

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on: Jun 24, 2018
Regression analysis was applied between demand for a product (y) and the price of the product (x), and the following estimated regression equation was obtained. = 120 - 10x Based on the above estimated regression equation, if price is increased by 2 units, then demand is expected to
 a. increase by 120 units.
  b. decrease by 100 units.
  c. increase by 20 units.
  d. decease by 20 units.

Question 2

The monthly earnings of computer programmers are normally distributed with a mean of 4,000 . If only 1.7 percent of programmers have monthly incomes of less than 2,834, what is the value of the standard deviation of the monthly earnings of the computer programmers?


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ryhom

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Reply #1 on: Jun 24, 2018
Answer to Question 1

d

Answer to Question 2

550


Awilson837

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Reply #2 on: Jun 24, 2018
Thank you


ryhom

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Reply #3 on: Jun 24, 2018
No problemo


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