Rhino viruses typically cause common colds. In a test of the effectiveness of​ echinacea, 32   of the 39   subjects treated with echinacea developed rhinovirus infections. In a placebo​ group, 81   of the 94   subjects developed rhinovirus infections. Use a 0.05   significance level to test the claim that echinacea has an effect on rhinovirus infections. Complete parts​ (a) through​ (c) below. Identify the test statistic. Test the claim by constructing an appropriate confidence interval. Based on the​ results, does echinacea appear to have any effect on the infection​ rate?

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Estimation

A new framework of data analysis where the new statistical methods are used for interpreting the results and analyzing the data is known as estimation in statistics.