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Calculating a z statistic in a test about a proportion | AP Statistics | Khan Academy

16,947 views

Khan Academy

Video Language:

  • English

Caption Language:

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

Accent:

  • English (US)

Speech Time:

98%
  • 4:46 / 4:50

Speech Rate:

  • 169 wpm - Fast

Category:

  • Education

Tags :

Intro:

Video Vocabulary

unemployment

/ˌənəmˈploimənt/

noun

Number of people without jobs in a country.

correct

/kəˈrekt/

adjective verb

True or accurate. To write marks on a piece of work to show mistakes.

residents

/ˈrez(ə)dənt/

noun other

person who lives somewhere permanently or on long-term basis. People who live in a particular place.

national

/ˈnaSH(ə)n(ə)l/

adjective noun

relating to nation. citizen of country.

conditions

/kənˈdiSH(ə)n/

noun other verb

state of something. Things necessary in order for some things to occur. have significant influence on.

unemployed

/ˌənəmˈploid/

adjective noun

(of person) without paid job but available to work. People without a job; the jobless.

proportion

/prəˈpôrSH(ə)n/

noun verb

Size of one thing compared to the size of another. give something particular or suitable relationship to something else.

claimed

/klām/

verb

To say something is true when others may not agree.

previous

/ˈprēvēəs/

adjective

existing or occurring before in time or order.

hypothesis

/hīˈpäTHəsəs/

noun

supposition or proposed explanation made on basis of limited evidence as starting point for further investigation.

independent

/ˌindəˈpendənt/

adjective noun

free from outside control. independent person or body.

identify

/īˈden(t)əˌfī/

verb

establish identity of.

wondered

/ˈwəndər/

verb

To think or consider about something over time.

nothing

/ˈnəTHiNG/

adjective adverb noun pronoun

of no value. not at all. Item of little or no value, importance, interest. not anything.

inference

/ˈinf(ə)rəns/

noun

conclusion reached on basis of evidence and reasoning.

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