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anonymous

  • one year ago

Question Below! Please Help!!!

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  1. anonymous
    • one year ago
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    On January 28, 1986 the space shuttle Challenger exploded. Seven astronauts died because two large rubber O-rings leaked during takeoff. These rings had lost their resiliency because of the low temperature at the time of the flight. The air temperature was about 00 Celsius, and the temperature of the O-rings about 6 degrees below that. The link between O-ring damage and ambient temperature had been established prior to the flight. The engineers at Morton Thiokol, Inc had recommended that the flight be delayed. Unfortunately their argument wasn’t persuasive enough, and the launch proceeded with disastrous consequences. The engineers had failed to display the link between ambient temperature and O-ring damage in a clear and unambiguous fashion. All that was needed was a simple scatterplot. The data is given below. Temperature (0 C) - Column 1 Damage Index - Column 2 12 11 14 4 14 4 17 2 19 0 19 0 19 0 19 0 19 0 20 0 21 4 21 0 21 4 21 0 21 0 22 0 23 0 24 4 24 0 24 0 26 0 26 0 27 0 Construct a scatterplot from the data. Then answer the following: (a) Interpret the scatterplot (comment on association, form, strength, and outliers). (b) Based on this graphic, what recommendation would you have made for a flight if the forecast was for below 00 Celsius?

  2. anonymous
    • one year ago
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    @Abhisar @Clalgee @ParthKohli

  3. anonymous
    • one year ago
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    @texaschic101 @Nnesha @Conqueror

  4. anonymous
    • one year ago
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    have you entered the data into the software?

  5. anonymous
    • one year ago
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    No I need help with the whole question! I have NO idea what to do. Can you please help? @BPDlkeme234

  6. anonymous
    • one year ago
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    I will enter the data, just give me a minute

  7. anonymous
    • one year ago
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    Okay thank you @BPDlkeme234

  8. anonymous
    • one year ago
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    Okay, here is the scatterplot

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  9. anonymous
    • one year ago
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    Now, all I did to create that was copy and paste the data values you gave me into: http://www.alcula.com/calculators/statistics/scatter-plot/

  10. anonymous
    • one year ago
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    (a) Interpret the scatterplot (comment on association, form, strength, and outliers). There is a serious outlier at (x,y) = (12,11)

  11. anonymous
    • one year ago
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    in terms of association, which I take to mean correlation, there are parts of the data which are strongly correlated, and part of the data that are not strongly correlated (that may also imply strength).

  12. anonymous
    • one year ago
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    At 0 degrees, the data is strongly correlated, however for values other than zero degrees the results are weakly correlated.

  13. anonymous
    • one year ago
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    Form: what can you say about that? we will consider this as distribution of data values, the values at zero degrees show a linear pattern, however values above this show an irregular form.

  14. anonymous
    • one year ago
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    Umm is it more skewed to the right? @BPDlkeme234

  15. anonymous
    • one year ago
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    I considered skew in my answer, but, skew only applies where the frequency distribution is a regular shape which this is not

  16. anonymous
    • one year ago
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    Okay but what about b? @BPDlkeme234

  17. anonymous
    • one year ago
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    I have no idea what its asking..

  18. anonymous
    • one year ago
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    Okay, part b

  19. anonymous
    • one year ago
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    what is it asking? @BPDlkeme234

  20. anonymous
    • one year ago
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    (b) Based on this graphic, what recommendation would you have made for a flight if the forecast was for below 00 Celsius? According to the diagram, column 1(the x-axis) equals temp in degrees celsius which goes from 12 to 26 degrees,the damage index (the y-axis) goes from 0 to 11. Based on that: 1. At 12 degrees, the damage index was 11 2.At 14 degrees the damage index was 4 (a big drop for a two degree increase in temperature) 3.At 16 degrees, the damge index drops to 2 Now there are totally weird results for 21 degrees and 24, i.e. it records that there are two different values

  21. anonymous
    • one year ago
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    However, you are asked what recommendation you would give if it drops below 0 degrees celsius, and based on the fact that, at 16 degrees the damage index is 2, and at 14 degrees, this rises to 4 and at 12 degrees this rises again to 11, I would have to say that at zero the damage would be catastrophic

  22. anonymous
    • one year ago
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    P.S. Richard Feynman, who demonstrated the problems with the O-rings, is one of my favourite scientists

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