UNS o 16 (0 complete Below are the results of a tial nwoling an experimental vac

Question

UNS o 16 (0 complete Below are the results of a tial nwoling an experimental vaccine for children Vaccine treatment52 Placebo Use a 0.05 significance level to test for i Did not develop fu 426 ndence between the columns and rows Does the vaccine appear to be effective? 356 Does the vaccine appear to be effective? DA. No, because the test statistic is greater than the critical value 0 B. No, because the test statisticis less than the critical value C. Yes, because the test statistic is greater than the critical value. D. Yes, because the test statistvctelehs than the cntical value x to select your arsveh

Explanation / Answer

The statistical software output for this problem is:

Contingency table results:
Rows: var3
Columns: None

Chi-Square test:

P - value > 0.05, we do not reject the null hypothesis.

Hence,

Option B is correct.

Flu No Flu Total Vaccine 52 74 126 Placebo 356 426 782 Total 408 500 908

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