Researchers have postulated that because of differences in diet, japanese children have a lower mean blood cholesterol level than u. s. children do. suppose that the mean level for u. s. children is known to be 165. let μ represent the true mean blood cholesterol level for japanese children. what hypotheses should the researchers test?

What was the direct cause of the u.s. entry into world war ii? a. the bombing of pearl harbor b. the invasion of poland by germany c. the capture of belgium by germany d. the battle of britain

The civilian conservation corps (ccc), an agency established during the great depression as part of the new deal, created jobs for people who were unemployed. what kind of work did people do as part of the ccc? a. built libraries and hospitals b. maintained state and national forests c. photographed migrants and the homeless d. constructed roads and bridges

Abadger lives in oak grove forest. it is a female and it is four years old. which of the following animals could be considered a member of this badger's population? a. a two-year old male red fox living in oak grove forest b. a ten-year-old female skunk living in pine warden forest c. a four-year-old female badger living in a zoo d. a ten-year-old male badger living in oak grove forest