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Two-sample t test for difference of means | AP Statistics | Khan Academy

369,851 views

Khan Academy

Video Language:

  • English

Caption Language:

  • {{captionLanguage | language_name}} ({{captionLanguage}})

Accent:

  • English (US)

Speech Time:

93%
  • 6:27 / 6:56

Speech Rate:

  • 149 wpm - Conversational

Category:

  • Education

Tags :

Intro:

Video Vocabulary

separate
adjective noun verb

Being different from or unrelated to another. individual items of clothing suitable for wearing in different combinations. To divide two things by being in between them.

summary

/ˈsəmərē/

adjective noun

not including needless details or formalities. brief statement or account of main points of something.

measures

/ˈmeZHər/

noun other verb

plan or course of action. Tools used to calculate the size of some things. determine size or amount.

construct
noun verb

A thought, theory or hypothesis. To create a sentence, story, argument or theory.

conduct
noun verb

Your behavior. organize and carry out.

alternative

/ôlˈtərnədiv/

adjective noun

available as possibility. possibility.

difference

/ˈdif(ə)rəns/

noun verb

Not of the same kind; unlike other things. alter coat of arms.

tomatoes

/təˈmādō/

noun other

red pulpy fruit eaten as vegetable. Round soft red vegetables, fruits used in sauces.

curious

/ˈkyo͝orēəs/

adjective

eager to find out.

whether

/ˈ(h)weT͟Hər/

conjunction

expressing doubt or choice between alternatives.

inference

/ˈinf(ə)rəns/

noun

Conclusion reached after considering facts.

significance

/siɡˈnifikəns/

noun

The potential for something to have a big effect.

between

/bəˈtwēn/

adverb preposition

in space separating things. From one person, thing, or place, to another.

heights

/hīt/

noun other

measurement from base to top. High places.

through

/THro͞o/

adjective adverb preposition

continuing or valid to final destination. expressing movement into one side and out of other side of opening etc.. Over, in, across an entire thing or place.

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