CH 22 OT: A nutrition lab tested 40 hot dogs to see if their mean sodium content was less than the 325mg upper limit set by regulations for "reduced sodium" franks. The mean sodium content for the sample was 322.3 mg with a standard deviation of 17 mg. Assume that the assumptions and conditions for the test are met. a) Test the hypothesis that the mean sodium content meets the regulation. b) Will a larger sample size ensure that the regulations are met? a) Write appropriate hypotheses. H0: p=325 HA: u