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Given are five observations for two variables, x and y. xi 1 2 3 4 5...

Given are five observations for two variables, x and y.

xi 1 2 3 4 5
yi 3 7 8 11 14
  1. Which of the following scatter diagrams accurately represents the data?


    1.
    appletImage?dbid=1623809362
    2.
    appletImage?dbid=667726590
    3.
    appletImage?dbid=1529309337
    SelectScatter diagram #1Scatter diagram #2Scatter diagram #3Item 1
  2. What does the scatter diagram indicate about the relationship between the two variables?
    SelectThere appears to be a linear relationship between x and yThere appears to be a nonlinear relationship between x and yItem 2
  3. Try to approximate the relationship betwen x and y by drawing a straight line through the data. Which of the following is a scatter diagrams accurately represents the data?

    1
    appletImage?dbid=1489785596

    2
    appletImage?dbid=948736633

    3
    appletImage?dbid=1935725272


    SelectScatter diagram #1Scatter diagram #2Scatter diagram #3Item 3
  4. Develop the estimated regression equation by computing the the slope and the y intercept of the estimated regression line (to 1 decimal).
    = + x
  5. Use the estimated regression equation to predict the value of y when x = 4 (to 1 decimal).
    =
math   Statistics-And-Probability   
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Answer #1

HHHHHHHHHHHHHH 1 2 3 4 5 6 Correct Answer: Scatter diagram #2. There appears to be a linear relationship between x and y.y = 2.600 x + 0.800 R = 0.97 + +++++++ ||||||f 0 123456Correct Answer: Scatter diagram #1. The estimated regression equation is ♡ = 0.8 +2.6x. û = 0.8+2.6x = 0.8+2.6(4) = 0.8+10.4

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