# n_0529 - Hypothesis tests Assess the evidence provided by...

• Notes
• 9

This preview shows pages 1–3. Sign up to view the full content.

Chapter 6 Section 6.2 and 6.3 1 Hypothesis tests Assess the evidence provided by the data in favor of some claim about the population. Suppose our state claims that the average size of an elementary school classroom is 24 students. Suppose we find that of the 48 primary classes in our district, the average class size is 25.3. Based on this, you question the state’s claim. Is it just random variation that has resulted in your sample having more than the average or is the average actually greater than the state claims? We answer this question by conducting an hypothesis test.

This preview has intentionally blurred sections. Sign up to view the full version.

Chapter 6 Section 6.2 and 6.3 2 Stating hypotheses Null hypothesis, H o : this is a specific value of a population parameter. The null hypothesis is what we believe until we see statistical evidence that persuades us to believe something different. Alternative hypothesis, H a : this is a different value from the value of the parameter in the null hypothesis. The parameter in the alternative hypothesis does not have a specific value.
This is the end of the preview. Sign up to access the rest of the document.
• Summer '07
• LIANG,FANG
• Null hypothesis, Statistical hypothesis testing

{[ snackBarMessage ]}

### What students are saying

• As a current student on this bumpy collegiate pathway, I stumbled upon Course Hero, where I can find study resources for nearly all my courses, get online help from tutors 24/7, and even share my old projects, papers, and lecture notes with other students.

Kiran Temple University Fox School of Business ‘17, Course Hero Intern

• I cannot even describe how much Course Hero helped me this summer. It’s truly become something I can always rely on and help me. In the end, I was not only able to survive summer classes, but I was able to thrive thanks to Course Hero.

Dana University of Pennsylvania ‘17, Course Hero Intern

• The ability to access any university’s resources through Course Hero proved invaluable in my case. I was behind on Tulane coursework and actually used UCLA’s materials to help me move forward and get everything together on time.

Jill Tulane University ‘16, Course Hero Intern