Download presentation

Presentation is loading. Please wait.

Published byMartin Omans Modified over 3 years ago

2
There are two statistical tests for mean: 1) z test – Used for large samples (n ≥ 30) 1) t test – Used for small samples (n < 30)

3
Test Value = (Observed Value) – (Expected Value) Standard Error * The observed value is the statistic that is computed from the sample data. ** The expected value is the “hypothesized value.”

4
t.v.= ( X – µ ) X = ( σ / √n ) Sample mean µ =Hypothesized Value σ =Standard Deviation n =Sample Size

5
1)State the null and alternative hypotheses 2)Find the critical value(s) 3)Compute the test value 4)Make the decision to either “reject the null” or “not reject the null”

Similar presentations

OK

Unit 8 Section 8-3 – Day 2. 8-3: P-Value Method for Hypothesis Testing Instead of giving an α value, some statistical situations might alternatively.

Unit 8 Section 8-3 – Day 2. 8-3: P-Value Method for Hypothesis Testing Instead of giving an α value, some statistical situations might alternatively.

© 2017 SlidePlayer.com Inc.

All rights reserved.

Ads by Google

Ppt on e marketing Ppt on care of public property search Ppt on railway tracks Ppt on computer software and languages Ppt on the elements of the short story Download ppt on mobile operating system Ppt on protein energy malnutrition Ppt on chapter 3 atoms and molecules wikipedia Ppt on rime of the ancient mariner part 1 and 2 Ppt on active listening skills