/statcalc

Primary LanguagePython

Stats Calculator

Build Status Coverage Status

Team Members

Outline

  • Stats Calculator
    1. Properties
    2. Math Operations
      • Addition - Calls addition static method
      • Subtraction - Calls subtraction static method
      • Multiplication - Calls multiplication static method
      • Division - Calls division static method
      • Square - Calls square static method
      • Square Root - Calls square root static method
    3. Random Generator
      • listPick Methods
        • return random choice
        • use seed
        • use RandomGenerator.randNum to generate list
    4. Population Sampling Functions
      • randomSampling
      • confidenceInterval
      • marginOfError
      • cochranFormula
      • sampleSize
    5. Descriptive Statistics Functions

Breakdown of Tasks

  • Random Generator Function

    • Description: The random module uses the seed value as a base to generate a random number. if seed value is not present it takes system current time.
    • Tasks
      • without a seed between a range of two numbers
      • with a seed between a range of two numbers(integer and decimal
      • generate a list of n random numbers
      • selecting random item from list
      • setting a seed and randomly select
      • selecting n number of items from a list without a seed
      • selecting n number of items from a list with a seed
    • Use Functions (make sure to import the random module)
      • .seed()used to initialize the random number generator.
      • .random() for generating random floats
      • .randint() for generating random integers
      • .randrange() for generating random numbers within a range
      • .choice() for randomly selected element

  • Populating Sampling Functions

    • Description: Computing statistical functions using statistics module
    • Tasks
      • Simple random sampling
      • Confidence Interval For a Sample
      • Margin of Error
      • Cochran’s Sample Size Formula
      • How to Find a Sample Size Given a Confidence Interval and Width (unknown population standard deviation)
    • Use functions
      • .sample() to choose sample/multiple items from a Python list, set, and dictionary.
      • scipy.stats.t.interval() to find the confidence interval of a sample statistic

  • Descriptive Statistics Functions

    • Description: Creating functions for basic stats operations
      • Mean
      • Median
      • Mode
      • Variance
      • Standard Deviation
      • Z-Score
    • Use functions:
      • Use import numpy See example
        • np.mean()
        • np.median()
        • np.mode()
        • np.var()
        • np.std()
        • .stats.zscore Make sure to from scipy import stats

Feedback from Professor

  • Travis Build
  • Remove Print Statements
  • Complete other methods

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