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7. A recent Iowa straw poll for the Democratic Primary found the following number of supporters...

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Basic Math

7. A recent Iowa straw poll for the Democratic Primary found thefollowing number of supporters for these candidates (ObservedFrequencies).

Elizabeth Warren

Bernie Sanders

Joe Biden

Pete Buttigieg

20

25

10

25

a) Specify the null and alternative hypotheses for a chi-squareGoodness of Fit test of candidate preference.

b) Fill in the table below with the expected frequencies.

Elizabeth Warren

Bernie Sanders

Joe Biden

Pete Buttigieg

c) Use the observed and expected frequencies to calculate achi-square Goodness of Fit test to decide if people in Iowa have apreference for any of the candidates, using alpha = .05. Report thecritical value and your decision.

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SolutionGivenA recent Iowa straw poll for the Democratic Primary found thefollowing number of supporters for these candidates ObservedFrequenciesElizabeth WarrenBernie SandersJoe BidenPete ButtigiegTotal N2025102580Part a Specify the null and alternativehypotheses for a chisquare Goodness of Fit test of candidatepreferenceH0 People    See Answer
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