# populations |

Population |

variance |

Samples |

Statistic |

Variance |

Formula for |

test statistic |

for

Hypothesis

Testing

** **

Decision rule

There are several ways to phrase

the decision rule and they all have the same meaning.

Reject the

null if:

1) |test statistic| > |critical value|

2) The absolute

value of the test statistic

is bigger than the absolute

critical value

3) p-value < some significance level

*most** **often** **0.05*

* *

Usually, you will be using the p-value

to make a decision.

1- Types of data and level of measurement
2- Graphs and Tables that Represent Categorical Variables
3- Excel formulas
4- Graphs and tables that represent numerical variables
5- Graphs and Tables for Relationships Between Variables.
6- Mean, Median, Mode
7- Variance and Standard Deviation
8- Covariance and Correlation
9- Distributions
10- The Central Limit Theorem
11- Estimators and Estimates
12- Confidence Intervals and the Margin of Error
13- Studentâ€™s T Distribution
14- Formulas for Confidence Intervals
15- Scientific method
16- Hypotheses
17- Decisions You Can Take
18- Statistical Errors (Type I Error and Type II Error)
19- P-Value
20- Formulae for Hypothesis Testing
21- Basics
22- Linear regression equation
23- How to do linear regression in Excel with Analysis ToolPak
24- Interpret regression analysis output
25- How to make a linear regression graph in Excel
26- How to do regression in Excel using formulas