Previously, 4% 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 % today. She randomly selects 120 pregnant mothers and finds that 2 of them smoked more cigarettes during pregnancy. Test the researcher's statement at the = 0.05 level c gnificance. hat are the null and alternative hypotheses? versus H: pe integers or decimals. Do not round.) Cause npo (1-Po) = 10, the normal model be used to approximate P-value. und to one decimal place as needed.)