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.
inquire. 1  to seek information by questioning; ask: to inquire about a person. 2  to make investigation (usually followed by into): to inquire into the incident. 3  to seek to learn by asking: to inquire a person's name. 4  Obsolete. to seek. 5  Obsolete. to question (a person).