Answer to Question #20695 in Statistics and Probability for Nia
hte drug prevnar is a vaccine meant to prevent meningitis.it also helps control ear infections and is typically administered to infants. in clinical trials,Prevnar was administered to 710 randomly sampled infants between 12 and 15 months of age. of the 710 infants,121 experienced a loss of appetite. it is known that the proportion of infants who experienced a loss of appetite with the competing medication was 0.135. the makers of prevnar claim that the proportion to infants who show a loss of appetite with the use of prevnar is less than 0.135. Test this claim using a 0.01 level of significance.