A)

It is stated by the media that there will be 36% voters for democratic candidate for a particular election. A researcher claims that this percentage might be different to 36%. So he interviews 360 voters about who they going to vote. Of the 360 voters, 206 reported that they are going to vote for the democratic candidate. He is planning to carry out a hypothesis test to check the claim made by media. What are the null and alternative hypotheses for this hypothesis test? O Ho : p=0.36 and Ha : p #0.36 O Ho : p=0.57 and Ha : p #0.57 O Ho : p=0.43 and Ha : p # 0.43 O Ho : p = 0 and Ha : p #0The influence of feeding regimens on iron status during infancy were considered among a set of infants. One group contained 23 breastfed infants, while 19 children in another group were fed a standard baby formula without any iron supplements. Infants who were breastfed had average blood hemoglobin levels of 13.3 g/dl and standard deviation of 1.7 g/dl and infants who were given baby formula average blood hemoglobin levels of 12.4 g/dl and standard deviation of 1.8 g/dl. Population standard deviations for these two groups were unknown. What is the most suitable test statistic for this example? O O p(1-pip(1-pi O XI - X1 O X O XI-X2 +