或者是要求什么Thecostofweddingshassky-查字典问答网
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  或者是要求什么Thecostofweddingshasskyrocketedinrecentyears.Asaresult,manycouplesareoptingtohavetheirweddingsintheCaribbean.ACaribbeanvacationresortrecentlyadvertisedthatthecostofaCaribbeanweddingwaslessthan$10,

  或者是要求什么

  Thecostofweddingshas

  skyrocketedinrecentyears.Asaresult,manycouplesareoptingtohavetheir

  weddingsintheCaribbean.ACaribbeanvacationresortrecentlyadvertisedthat

  thecostofaCaribbeanweddingwaslessthan$10,000.Listedbelowisthe

  totalcost(in$thousands)forasampleofeightCaribbeanweddings:

  9.7

  9.6

  11.5

  12.8

  9.1

  10.5

  13.5

  12.3

  8.2

  9.3

  11.1

  12.3

  14.1

  8.1

  11

  10.8

  10.4

  9

  10.5

  10.8

  10.2

  9.6

  12.7

  11.1

  9.9

  11.6

  11.2

  8.8

  9.4

  10.3

  9.2

  9.3

  (a)(10%)At5%levelofsignificance,isitreasonabletoconcludethatthecostofaCaribbeanwedding

  issignificantlydifferentthan$10,000onaverage?

1回答
2020-05-12 06:23
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黄颜

  ItistofindouttheaverageofS10,000withtheCIof5%.Thestandarddeviationofthedata.

2020-05-12 06:28:17

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