Business Statistics Made Easy
Runs on TI-Nspire CX and TI-Nspire CX II only. It does not run on computers!
Runs on TI-Nspire CX and TI-Nspire CX II only. It does not run on computers!
App Purchase
Enter the last 8 digits of your 27-digit TI-Nspire's Product ID.
Located under 5:Settings → 4:Status → About ID may look like: 1008000007206E210B0BD92F455 HELP. If this was your ID you would only type in BD92F455.
Price:$49.95
Description
- Users have boosted their Statistics and Probability knowledge.
- Shows Step by Step solutions for most Statistics and Probability topics.
- Step by Step Confidence Intervals for mean, proportion, 2 means, 2 proportions, variance, slope, etc.
- Compute Sample Sizes for Confidence Intervals.
- Step by Step Tests of Significance (Z-Tests, T-Tests, ChiSquare Goodness of Fit and Independence tests, 2-sample T tests, 2 proportion Z tests, for Variance, etc)
- Step by Step F Test for 2 variances
- Step by Step Regression.
- Read about how Confidence Intervals behave.
- Read about Significant Tests: Type 1 Error, Type 2 Error, Power of a Test.
- Much easier handling than other Statistics packages: Choose to enter Data or Statistic values. Select Significant/Confidence Levels easily.
- Distributions: compute probabilities, etc.
- Includes Binomial, Geometric, Normal, Student-t, Exponential, Poisson, Multinomial, Hypergeometric, F-, Chi-Square and more Distributions.
- Probability Checker for independent events, disjoint events. Also solves P(A or B)=P(A)+P(B)-P(A and B) for the unknown.
- Regressions: Linear , Quadratic, Cubic, Quartic, Sinusoidal, Logarithmic, Exponential, Power, MedMed
- Step by Step Derive the Coefficients for a Linear Regression Line, the Coefficient of Determination and the Correlation Coefficient.
- Also: Z-score Solver, Random Number Generator, etc
- 1 or 2 variable stats on mean, mode, median, standard deviation, variance, range
- Random Variables: Compute Variance, Expected Value and Standard Deviation.
- Additional Modules x`on: Probability, Combinatorics, Percentages, Ratios, Proportions, Exponential and Logarithmic Functions, Exponential Function Solver, Equation Solver
FUNCTIONALITY & MENU ITEMS OF APP :
Combinatorics
- n1*n2*n3*.. = Multiplication Principle
- n! = Number of Rearrangements
- nPr = Number of ways to rearrange r given n
- nCr = Number of ways to pick r given n
- n^r = # ways to rearrange n items repeated r times
- (n+r-1)!/((n-1)!*r!) = Select r given n w. repeatition
- Binomial Coefficients & Pascal Triangle
Probability & Expected Value
- Read: Introduction & Examples
- Read: Rules & Properties
- Odds <-> Probability
- Conditional Probability
- Expected Value: Find mu and s
- Read: Cards
- Read: Dice
- Read: Marbles
- Read: Coins
- P(A or B)=P(A)+P(B)-P(A and B)
- Check if A and B are dependent or disjoint
- P(A or B or C)
Confidence Intervals
- Read: Confidence Intervals & their Behavior
- CI for Mean mu with known Standard Deviation
- CI for Mean: Sample Size given Margin of Error
- CI for 2 Means with known Standard Deviations
- CI for Mean mu with unknown Standard Deviation
- CI for 2 Means with unknown Standard Deviations
- CI for Proportion p
- CI for p: Sample Size given Margin of Error
- CI for 2 Proportions
- CI for Variance s^2 of Population
- CI for Variance s^2 of Sample
Statistics
- Find Average
- Find Weighted Average
- Find Std Deviation
- Find Quartiles & 5-Number Summary
- Find Percentiles
- Z-score Solver
Regression
- Find Regression Line y=mx+b
- Find Regression Line y=mx+b Step by Step
- Find Regression Line y=a+bx
- Read: All about Linear Regression
- Read: Correlation is not Causation!
- Find Median-Median Line y=mx+b
- Find Quadratic Regression y=ax^2+bx+c
- Find Cubic Regression y=ax^3+bx^2+cx+d
- Quartic Regression y=ax^4+bx^3+cx^2+dx+e
- Find Power Regression y=a*b^x
- Find Exponential Regression y=a*x^b
- Find Logarithmic Regression y=a+b*ln(x)
- Find Sinusoidal Regression y=a*sin(bx+c)+d
- Logistic Regression y=c*e^(bx)/(e^(bx)+a)
Distributions
- Binomial Distribution Table
- Cumulative Binomial Distribution
- Normal Distribution
- Inverse Normal Solver
- Read: About Normal Distributions
- Exponential Distribution Table
- Geometric Distribution Table
- Cumulative Geometric Distribution
- Poisson Distribution Table
- Cumulative Poisson Distribution
- Student T-Distribution Table
- Cumulative T-Distribution
- Inverse T Solver
- Chi^2-Distribution Table
- Cumulative Chi^2-Distribution
- Inverse Chi^2-Solver
- F-Distribution Table
- Cumulative F-Distribution
- Inverse F-Solver
Tests of Significance
- Read: About Tests of Significance
- Z-Test for Mean Ho:mu=mu_o
- Z-Test for Means Ho:mu1=mu2
- Z-Test for Proportion Ho:p=po
- Z-Test for Proportions Ho:p1=p2
- T-Test for Mean Ho:mu=mu_o
- T-Test for Means Ho:mu1=mu2
- F-Test for Ho:s1=s2
- ChiSquared-Test: Goodness of Fit
- ChiSquared-Test of Independence
Markov Chains & Stoch. Matrices
- Stochastic and Regular Stochastic Matrix
- Probability Vector
- Terminal State & Fixed Probability Vector
- Find A^n
- nth State of a Markov Chain: p0*A^n
Business Statistics
- Moving Average
- Simple Exponential Smoothing
- Exponential Smoothing with Seed
- Portfolio Return
- Portfolio Risk
Decision Analysis
- Wald Mini-Max Strategy
- Hurwicz Maxi-Max Strategy
- Savage Maxi-Min Strategy
- LaPlace Expected-Value Strategy
- Unequal Probability Strategy
Help & About
- Help & Use of Keys
- What to Input
- About us
- Set FontSize
Slide Shows
