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

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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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Elizabeth Warren	Bernie Sanders	Joe Biden	Pete Buttigieg
20	25	10	25