The following table gives the average high temperatures in

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The following table gives the average high temperatures in January and July for several European Cities. Write a 90% confidence interval for the mean temperature difference summer and winter in Europe. Be sure to check conditions for inference, and clearly explain what your interval means.

City ------------Jan.----July

Vienna---------34------75

Copenhagan--36-----72

Paris------------42-----76

Berlin-----------35------74

Athens----------54-----90

Rome------------54-----88

Amsterdam----40------69

Madrid-----------47------87

London----------44-------73

Edinburgh------43------65

Moscow--------21-------76

Belgrade-------37--------84

Reference no: EM13617290

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