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STAT 217 : AMAT217Lab1.pdf

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School
University of Calgary
Department
Statistics
Course
STAT 217
Professor
Lucia

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STAT 217 Full Course Notes
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STAT 217 Full Course Notes
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Document Summary

5 x lim x 1 lim x 5+ f (x) =px2 + 3x + 5 x (cid:16)2x p4x2 + x + 1(cid:17) lim. 8. lim x 4(cid:12)(cid:12)x2 x 17(cid:12)(cid:12) x + 1 lim x 3 lim x + x4 6x2 8x 3 x3 + 2x2 15x. 11. lim x (cid:16)2x +p4x2 + x + 1(cid:17) if x < 2 if x = 2 if x > 2. Determine lim x 2 f (x), if it exists. x2 + 5x. 16 x4 x2 + 5x 14 lim x 3 . 1 2x (x + 3)4 f (x) f (1) 15/(x2 + 1) f (x) = x 4 (cid:12)(cid:12)x2 + 3x 28(cid:12)(cid:12) 3x2 11x 4 f (x) = . K 3 (32 kx)/(x2 2) if x < 2 if x = 2 if x > 2. Find all values of the constant real number f (x) exists, and has a value greater than 16.

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Related textbook solutions

Introductory Statistics
OER Edition, 2013
Openstax
ISBN: 9781938168208

Related Questions

Consider the following time series data:

Week             1                   2                 3                4                 5                     6

-----------------------------------------------------------------------------

Value            18                 13            16               11              17                   14

Using the naïve method (most recent value) as the forecast for the next week, compute the following measures of forecast accuracy.

A. mean absolute error

B. mean squared error

C. mean absolute percentage error

d. What is the forecast for Week 7?

  1. Complete the following problem using concepts of STACK.
  2. If you are using JAVA, you must include the main method as well which should test your other methods and print the outputs according to the tasks.
  3. If you are using PYTHON, make sure your code has the methods invoked and proper printing statements according to the tasks.
  4. Your program will take an arithmetic expression as a string input. For Example:

     

    • “1+2*(3/4)”

     

    • “1+2*[3*3+{4–5(6(7/8/9)+10)–11+(12*8)]+14”

     

    • “1+2*[3*3+{4–5(6(7/8/9)+10)}–11+(12*8)/{13+13}]+14”

     

    Program

     

    Your program will determine whether the open brackets (the square brackets, curly braces, and the parentheses) are closed in the correct order.

     

    Outputs:

     

    Output 1

     

    1+2*(3/4)

    This expression is correct.

     

    Output 2

     

    1+2*[3*3+{4–5(6(7/8/9)+10)–11+(12*8)]+14

    This expression is NOT correct.

    Error at character # 10. ‘{‘- not closed.

     

    Output 3

     

    1+2*[3*3+{4–5(6(7/8/9)+10)}–11+(12*8)/{13+13}]+14

    This expression is correct.


    Output 4

     

    1+2]*[3*3+{4–5(6(7/8/9)+10)–11+(12*8)]+14

    This expression is NOT correct.

    Error at character # 4. ‘]‘- not opened.

    Task 1

    Solve the above problem using an array-based stack.

     

    Task 2

    Solve the above problem using a linked list-based stack.

consider the following time series data

Week 1 2 3 4 5 6
Value 18 13 16 11 17 14
a. Construct a time series plot. What type of pattern exists in the data?
b. develop a three-week moving average for this time series. Compute mSe and a forecast for week 7.
c. use a 5 0.2 to compute the exponential smoothing values for the time series. Compute mSe and a forecast for week 7.
d. Compare the three-week moving average forecast with the exponential smoothing
forecast using a 5 0.2. Which appears to provide the better forecast based on mSe?
explain.
e. use trial and error to find a value of the exponential smoothing coefficient a that
results in a smaller mSe than what you calculated for a 5 0.2.