Like this presentation? Why not share!

- The maori backround by sangbang 179 views
- Tắm trắng bằng sữa non kết hợp tinh... by Thang Van 208 views
- Muathangtu by Phuong Huu Tri Vo 117 views
- Tư vấn thành lập công ty tại bắc ninh by tuvanluatminhanh 82 views
- Cách giữ chân các ông chồng “nhậu” by landatrangmin 113 views
- Bộ luật lao động của nước cộng hòa ... by Bookbooming Nhà sách 184 views

648

-1

-1

Published on

No Downloads

Total Views

648

On Slideshare

0

From Embeds

0

Number of Embeds

0

Shares

0

Downloads

0

Comments

0

Likes

1

No embeds

No notes for slide

- 1. Statistics at HelpWithAssignment.com (Hypothesis Testing)<br /> www.HelpWithAssignment.com<br />
- 2. Hypothesis is making an assumption. <br />In Statistics, a Hypothesis or an assumption is taken first and then the Hypothesis is tested whether it is accurate or not. <br />Hypothesis testing is a study based on statistical accuracy of an experiment. <br />If the result is positive, then it is called statistically significant. <br />Hypothesis Testing<br /> www.HelpWithAssignment.com<br />
- 3. There are two types of statistical hypotheses.<br />A Null Hypothesis and an Alternate Hypothesis. <br />A Null Hypothesis is denoted by H0, it is actually an assumption that the simple observations are purely from chance.<br />Alternate Hypothesis on the other hand is denoted by H1 or Ha, assumes that that sample is influenced by a non-random cause.<br />Hypothesis Testing<br /> www.HelpWithAssignment.com<br />
- 4. Suppose that we want to test the hypothesis with a significance level of .05 that the climate has changed since industrialization. <br />Suppose that the mean temperature throughout history is 50 degrees. <br />During the last 40 years, the mean temperature has been 51 degrees and suppose the population standard deviation is 2 degrees. What can we conclude? <br />An example for Hypothesis Testing.<br /> www.HelpWithAssignment.com<br />
- 5. We have<br /> H0: µ = 50 or the temperature is normal <br /> H1: µ ≠50 or the temperature has changed<br />We compute the z score: <br />(51-50)/(2/√40) = 3.16<br />The table gives us 0.9992 <br />So that p = (1 – 0.9992)(2) = 0.002 <br />Since 0.002 < 0.05 <br />Solution<br /> www.HelpWithAssignment.com<br />
- 6. We can conclude that the Alternate Hypothesis is accepted and there has been a change in temperature. <br />Solution<br /> www.HelpWithAssignment.com<br />
- 7. At HelpWithAssignment.com we provide best quality Assignment help, Homework help, Online Tutoring and Thesis and Dissertation help as well. <br />HelpWithAssignment.com<br /> www.HelpWithAssignment.com<br />
- 8. For any of the above services you can contact us at http://www.helpwithassignment.com/ andhttp://www.helpwithassignment.com/statistics-assignment-help<br />HelpWithAssignment.com<br /> www.HelpWithAssignment.com<br />
- 9. You can follow us on our blog at http://helpwithassignment.blogspot.com/ and http://helpwithassignment.wordpress.com/<br />Thank You<br />HelpWithAssignment.com<br /> www.HelpWithAssignment.com<br />

No public clipboards found for this slide

×
### Save the most important slides with Clipping

Clipping is a handy way to collect and organize the most important slides from a presentation. You can keep your great finds in clipboards organized around topics.

Be the first to comment