In order to determine an interval for the mean of a population with unknown standard deviation a sample of 61 items is selected. The mean of the sample is determined to be 23. The number of degrees of freedom for reading the t value is a. 22 b. 23 c. 60 d. 61.
Learner's definition of INVESTIGATE 1 : to try to find out the facts about (something, such as a crime or an accident) in order to learn how it happened, who did it, etc.
Definition of inquiry for Students. plural. inquiries. 1 : the act of asking a question or seeking information On further inquiry, we learned his name. 2 : a request for information The inquiry is confidential. 3 : a thorough examination an official inquiry.