Chi-square test and significance of correlation

Reference no: EM13107819

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?

Reference no: EM13107819

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