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    Chi-Square Test & Significance of Correlation

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    A - What is our decision regarding the differences between the observed and expected frequencies if the critical value of chi-square is 9.488 and the computed value is 6.079?
    1 - The difference is probably due to sampling error and we should not reject the null hypothese.
    2 - Not due to chance; reject the null hypothesis
    3 - Not due to chance; do not reject the null hypothesis
    4 - Too close; reserve judgment.

    B - A hypothesis test that rho is zero is conducted at the 5% level of significance. If Spearman's rho is 0.86 for a sample of 15 observations, what is the computed value of the t statistic?

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    Please see the attachment.

    Assistance with statistics questions regarding chi-square & rho
    I would appreciate help with the following questions/equations so I can understand the concepts.

    A - What is our decision regarding the differences ...

    Solution Summary

    The solution provides step by step method for the calculation of test statistic for significance of correlation coefficient. Formula for the calculation is also included.