Can drinking cranberry juice help prevent urinary track infection in women? A st

Question

Can drinking cranberry juice help prevent urinary track infection in women? A study randomly assigned women just treated with antibiotics to one of 3 groups: daily cranberry juice, daily lactobacillus drink, or neither of these. The proportion of women developing at least 1 urinary tract infection during the 6 month study was recorded for each group (50 women in each group) Which inference procedure should be used? (1 point) O A: one sample or matched-pairs t procedure for a mean B: two sample t procedure for two means C:ANOVA for several means D: z procedure for a proportion E:chi-square for two-way tables

Explanation / Answer

Correct option:

E: Chi-square for two-way tables

EXPLANATION:

Here, we have categorical data: daily cranberry juice,daily lactobacillus drink or neither of these. So, we do not have ANOVA method. We have to use Chi-square which is about interaction rather than about differences between groups.

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