TABLE 18-8
Recently, a University Switched to a New Type

question 62

Short Answer

TABLE 18-8
Recently, a university switched to a new type of computer-based registration. The registrar is concerned with the amount of time students are spending on the computer registering under the new system. She decides to randomly select 8 students on each of the 12 days of the registration and determine the time each spends on the computer registering. The range, mean, and standard deviation of the times required to register are in the table that follows.
$$\begin{array} { c c l l } \text { Day } & \text { Range } & \text { Mean } & \text { Std.Dev. } \\1 & 10 & 5.250 & 3.4949 \\2 & 31 & 15.250 & 10.3060 \\3 & 13 & 20.375 & 4.9262 \\4 & 21 & 22.875 & 8.3911 \\5 & 35 & 8.500 & 11.3767 \\6 & 18 & 7.875 & 6.9372 \\7 & 25 & 11.250 & 8.5815 \\8 & 30 & 7.875 & 9.5235 \\9 & 17 & 10.250 & 6.3640 \\10 & 22 & 9.500 & 7.8740 \\11 & 27 & 7.875 & 8.7086 \\12 & 26 & 12.875 & 9.3723\end{array}$$
-Referring to Table 18-8, an R chart is to be constructed for the time required to register. The lower control limit for this data set is _____.

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Definitions:

Morphemes

The smallest grammatical units in a language that carry meaning, such as roots, prefixes, and suffixes.

Language Production

The neurological and cognitive processes involved in the generation of spoken, written, or signed language.

Babbling

A stage in child language acquisition, where infants produce sounds of varying tones and combinations as a precursor to language development.

Proto-Language

The hypothetical most recent common ancestor of a group of languages that formed from its dialects.