MATH 1280 Introduction to Statistics – Midterm Exam – part 2

Friday, July 19, 2019
Painted by Monet

Midterm Part 2 – questions 4 to 6 include their answers (total questions is 16)

Use this information for the next four questions: Researchers wanted to know about a standardized test that was used across the country. To get an estimate of the answer, they collected data from two classrooms of students who completed the test.
Scores from Classroom A:
8, 6, 9, 9, 8, 7, 8, 9, 10, 8, 10, 5, 4, 10, 9, 9

Scores from Classroom B:
9, 8, 7, 8, 9, 10, 9, 10, 7, 8, 10, 9, 9, 4, 6, 3

4) The set of all scores on the standardized test across the country is:
Select one:
a. a statistic
b. a parameter
c. the sample Incorrect
d. the population…> Correction

Monet’s painting

5) When all the scores for the two classrooms are added and divided by the number of observations, the resulting value is a:
Select one:
a. a statistic…> Correct
b. a parameter
c. the sample
d. the population

One of Monet’s paintings

6) What is the mean score in Group A?
Select one:
a. 8.4375
b. 8.3125
c. 8.0625…> Correct
d. 8.375
e. 8.4375 / sqrt(n)
R code:
> x <-c(8, 6, 9, 9, 8, 7, 8, 9, 10, 8, 10, 5, 4, 10, 9, 9)
> mean(x)
Result:
[1] 8.0625


# To be continued to part 3

26 comments:

  1. Oh, I love Claude Monet, he's my favorite artist!
    http://www.recklessdiary.ru

    ReplyDelete
    Replies
    1. Thank you to visit:
      MATH 1280 Introduction to Statistics – Midterm Exam – part 2
      @
      Painted by Monet

      Midterm Part 2 – questions 4 to 6 include their answers (total questions is 16)

      Delete
  2. Replies
    1. Thank you to visit:
      MATH 1280 Introduction to Statistics – Midterm Exam – part 2
      @
      Use this information for the next four questions: Researchers wanted to know about a standardized test that was used across the country. To get an estimate of the answer, they collected data from two classrooms of students who completed the test.
      Scores from Classroom A:
      8, 6, 9, 9, 8, 7, 8, 9, 10, 8, 10, 5, 4, 10, 9, 9

      Scores from Classroom B:
      9, 8, 7, 8, 9, 10, 9, 10, 7, 8, 10, 9, 9, 4, 6, 3

      Delete
  3. Monet's work is so beautiful and tranquil.

    ReplyDelete
    Replies
    1. Thank you to visit:
      MATH 1280 Introduction to Statistics – Midterm Exam – part 2
      @
      4) The set of all scores on the standardized test across the country is:
      Select one:
      a. a statistic
      b. a parameter
      c. the sample Incorrect
      d. the population…> Correction

      Delete
  4. Replies
    1. Thank you to visit:
      MATH 1280 Introduction to Statistics – Midterm Exam – part 2
      @
      5) When all the scores for the two classrooms are added and divided by the number of observations, the resulting value is a:

      Select one:
      a. a statistic…> Correct
      b. a parameter
      c. the sample
      d. the population

      Delete
  5. these pictures are beautiful ☺
    greetings
    Lili

    ReplyDelete
    Replies
    1. Thank you to visit:
      MATH 1280 Introduction to Statistics – Midterm Exam – part 2
      @
      6) What is the mean score in Group A?
      Select one:
      a. 8.4375
      b. 8.3125
      c. 8.0625…> Correct
      d. 8.375
      e. 8.4375 / sqrt(n)
      R code:
      > x <-c(8, 6, 9, 9, 8, 7, 8, 9, 10, 8, 10, 5, 4, 10, 9, 9)
      > mean(x)
      Result:
      [1] 8.0625


      # To be continued to part 3

      Delete
  6. Beautiful Monet paintings.
    Kisses!

    galerafashion.com

    ReplyDelete
    Replies
    1. Thank you to visit:
      MATH 1280 Introduction to Statistics – Midterm Exam – part 2
      @
      Painted by Monet

      Midterm Part 2 – questions 4 to 6 include their answers (total questions is 16)

      Delete
  7. I've always admired those who understand mathematics.
    It's all Greek to me.
    Which is funny, because math isn't a language.
    Or IS it?

    ReplyDelete
    Replies
    1. Thank you to visit:
      MATH 1280 Introduction to Statistics – Midterm Exam – part 2
      @
      Thank you to visit:
      MATH 1280 Introduction to Statistics – Midterm Exam – part 2
      @
      Use this information for the next four questions: Researchers wanted to know about a standardized test that was used across the country. To get an estimate of the answer, they collected data from two classrooms of students who completed the test.
      Scores from Classroom A:
      8, 6, 9, 9, 8, 7, 8, 9, 10, 8, 10, 5, 4, 10, 9, 9

      Scores from Classroom B:
      9, 8, 7, 8, 9, 10, 9, 10, 7, 8, 10, 9, 9, 4, 6, 3

      Delete
  8. Replies
    1. Thank you to visit:
      MATH 1280 Introduction to Statistics – Midterm Exam – part 2
      @
      4) The set of all scores on the standardized test across the country is:
      Select one:
      a. a statistic
      b. a parameter
      c. the sample Incorrect
      d. the population…> Correction

      Delete
  9. Replies
    1. Thank you to visit:
      MATH 1280 Introduction to Statistics – Midterm Exam – part 2
      @
      5) When all the scores for the two classrooms are added and divided by the number of observations, the resulting value is a:

      Select one:
      a. a statistic…> Correct
      b. a parameter
      c. the sample
      d. the population

      Delete
  10. Replies
    1. Thank you to visit:
      MATH 1280 Introduction to Statistics – Midterm Exam – part 2
      @
      6) What is the mean score in Group A?
      Select one:
      a. 8.4375
      b. 8.3125
      c. 8.0625…> Correct
      d. 8.375
      e. 8.4375 / sqrt(n)
      R code:
      > x <-c(8, 6, 9, 9, 8, 7, 8, 9, 10, 8, 10, 5, 4, 10, 9, 9)
      > mean(x)
      Result:
      [1] 8.0625


      # To be continued to part 3

      Delete
  11. Replies
    1. Thank you to visit:
      MATH 1280 Introduction to Statistics – Midterm Exam – part 2
      @
      Painted by Monet

      Midterm Part 2 – questions 4 to 6 include their answers (total questions is 16)

      Delete
  12. Thanks for sharing this interesting information.

    ReplyDelete
    Replies
    1. Thank you to visit:
      MATH 1280 Introduction to Statistics – Midterm Exam – part 2
      @
      Use this information for the next four questions: Researchers wanted to know about a standardized test that was used across the country. To get an estimate of the answer, they collected data from two classrooms of students who completed the test.
      Scores from Classroom A:
      8, 6, 9, 9, 8, 7, 8, 9, 10, 8, 10, 5, 4, 10, 9, 9

      Scores from Classroom B:
      9, 8, 7, 8, 9, 10, 9, 10, 7, 8, 10, 9, 9, 4, 6, 3

      Delete
  13. Gostei das pinturas.
    Boa continuação de semana.

    ReplyDelete
  14. Sounds interesting data collection to get to results.

    ReplyDelete