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TABLE 7-1
Times spent studying by students in the week before final exams follow a normal distribution with standard deviation 8 hours. A random sample of 4 students was taken from a population of 50 in order to estimate the mean study time for the population of all students. Use the finite population correction.
-Referring to Table 7-1, what is the probability that the sample mean differs from the population mean by less than 2 hours?
Friendliness
The quality of being kind, pleasant, and supportive towards others, facilitating positive interactions and relationships.
Phone Use
The manner in which a telephone is utilized for communication, encompassing both voice calls and other functionalities.
Etiquette
A set of conventions and norms that govern the behavior of individuals within social or professional situations.
Nonverbal Communication
The process of conveying a message without the use of words, through gestures, facial expressions, body language, and tone of voice.
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