MAT 1272 Statistics, SP2014

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  • #13797

    Ezra Halleck
    Participant

    14) *One of the products produced by Branco Food Company is All-Bran Cereal, which competes with three other brands of similar all-bran cereals. The company’s research office wants to investigate if the percentage of people who consume all-bran cereal is the same for each of these four brands. Let us denote the four brands of cereal A, B, C, and D. A sample of 1000 persons who consume all-bran cereal was taken, and they were asked which brand they often consume. The responses on consumption of cereal are listed in the table below. Does the sample provide enough evidence to reject null hypothesis that the percentage of people who consume all-bran cereal is the same for all four brands? Use significance level .

    Cereal Brand A B C D
    Consumption 212 284 254 250

    #17995

    Eric Osorio
    Member

    Here is what I got

    #17997

    Leonardo Calegare
    Participant

    How did you get the 7.82?

    #17998

    Chana Max, RN
    Participant

    The way to get the rejection region # of 7.8 is my using your chi2 table. you look at 3 degrees of freedom and then at the alpha of 0.05 and you will see that the # there is 7.815 or rounded is 7.8.

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