You Want to Test Whether or Not the Following Sample

question 16

Multiple Choice

You want to test whether or not the following sample of 30 observations follows a normal distribution.The mean of the sample equals 11.83 and the standard deviation equals 4.53. $$\begin{array} { l l l l l l l l l l } 2 & 3 & 5 & 5 & 7 & 8 & 8 & 9 & 9 & 10 \\11 & 11 & 12 & 12 & 12 & 12 & 13 & 13 & 13 & 14 \\15 & 15 & 15 & 16 & 16 & 17 & 17 & 18 & 18 & 19\end{array}$$ At the 5% level of significance, the conclusion of the test is that the

• A) null hypothesis cannot be rejected.
• B) data does not follow a normal distribution.
• C) sample data has no probability distribution.
• D) sample data is incorrect.

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Definitions:

Critical Period

A critical period is a specific time during an organism's life span when it is particularly receptive to certain stimuli or experiences, which can have a profound and lasting impact on development.

Social Skills

Abilities that facilitate interaction and communication with others.

Early Maturation

The process of reaching physical and sexual development sooner than what is considered typical for a particular age group.

Contrasting Effects

Refers to the phenomenon where different stimuli or conditions produce opposite or varying outcomes in behavior or responses.