Dictionary » N » Null

Null

null

1. Something that has no force or meaning.

2. That which has no value; a cipher; zero.

(Science: physics) Null method, a zero method. See Zero.


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Statistics - minitab - which test should i use?! please help

... baby boys and baby girls have different weight at birth. Researches selected 12 families with one son and one daughter. Formulate a suitable null hypothesis and alternative null hypothesis. This is what i came up with for the alternative: The mean weight of baby girls at birth is not lower ...

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by hb465
Mon Mar 17, 2014 12:19 am
 
Forum: General Discussion
Topic: Statistics - minitab - which test should i use?! please help
Replies: 1
Views: 65

Home Work Question

... if taking this pill will make a difference to the reaction times of people doing an online reaction test. Select from the following matching null and experimental (alternative) hypotheses for Susan’s proposed experiment. Experimental (alternative) hypothesis .................................Null ...

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by zak
Tue Dec 10, 2013 12:08 pm
 
Forum: General Discussion
Topic: Home Work Question
Replies: 12
Views: 2643

Home Work Question

The working and null hypothesis must be the opposite (null hypothesis is used to test for rightness of the working hypothesis). Moreover, the null hypothesis must state there is no difference/effect http://en.wikipedia.org/wiki/Null_hypothesis ...

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by JackBean
Tue Dec 10, 2013 10:22 am
 
Forum: General Discussion
Topic: Home Work Question
Replies: 12
Views: 2643

Home Work Question

... from one end (dark) to the other (brightly lit). She needs to formulate matching hypotheses to test. From the list below select the matching null and experimental (alternative) hypotheses that she should use and drag them into the table. Experimental (alternative) hypothesis.............. ...

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by zak
Mon Dec 09, 2013 8:33 pm
 
Forum: General Discussion
Topic: Home Work Question
Replies: 12
Views: 2643

Re: Stomach bloating and weight gain

... is lost from my life. As soon as i start going to gym and lift some weights , this problems starts. Bloated stomach, followed by constipation, null urge to eat food, headache lost stamina, increased heart beat and in extreme nose bleeding. When i stop workout for few days things start getting ...

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by hiwic1687
Tue Nov 26, 2013 5:16 pm
 
Forum: Physiology
Topic: Stomach bloating and weight gain
Replies: 451
Views: 2542141
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