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    Testing of hypothesis - Chi square

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    A) 100 students were classified according to their interest in statistics and their evaluation of the course. The results are tabulated below:
    HIGHLY INTERESTED INTERESTED INDIFFERENT NOT INTERESTED
    EXCELLENT 15 12 10 5
    GOOD 10 10 5 5
    ACCEPTABLE 5 10 8 5
    Is there any evidence of association between interest in the topic and course evaluation?

    b) The marks obtained by the groups of students are given below:
    MARK <=40 41-50 51-60 61-70 71-80 81-90 91-100
    FREQUENCY 5 10 35 22 15 8 5

    Fit a normal distribution to this data and test for goodness of fit.

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    https://brainmass.com/statistics/chi-squared-test/testing-of-hypothesis-chi-square-82249

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