Previously, 6% of mothers smoked more than 21 cigarettes during their pregnancy. An obstetrician believes that the percentage of mothers who smoke 21 cigarettes or more is less than 6% today. She randomly selects 115 pregnant mothers and finds that 5 of them smoked 21 or more cigarettes during pregnancy. Test researcher's statement at the a = 0.1 level of significance. What are the null and alternative hypotheses? Ho : | | versus H1 : V V (Type integers or decimals. Do not round.) Because npo (1 - Po) =| |10, the normal model be used to approximate the P-value. (Round to one decimal place as needed.) Find the P-value. P-value = (Round to three decimal places as needed.) Is there sufficient evidence to support the obstetrician's statement? O A. Yes, reject the null hypothesis because the P-value is less than a. There is sufficient evidence to conclude that the percentage of mothers who smoke 21 or more cigarettes during pregnancy is less than 6%. O B. No, reject the null hypothesis because the P-value is less than a. There is not sufficient evidence to conclude that the percentage of mothers who smoke 21 or more cigarettes during pregnancy is less than 6%. O C. Yes, do not reject the null hypothesis because the P-value is greater than a. There is sufficient evidence to conclude that the percentage of mothers who smoke 21 or more cigarettes during pregnancy is less than 6%. O D. No, do not reject the null hypothesis because the P-value is greater than a. There is not sufficient evidence to conclude that the percentage of mothers who smoke 21 or more cigarettes during pregnancy is less than 6%