A Researcher Is Conducting a Matched-Pairs Study Assume That the Data Are Normally Distributed in the Population

question 74

Multiple Choice

A researcher is conducting a matched-pairs study.She gathers data on each pair in the study resulting in: $$\begin{array} { | c | c | c | } \hline \text { Pair } & \text { Group 1 } & \text { Group 2 } \\\hline 1 & 10 & 12 \\\hline 2 & 8 & 9 \\\hline 3 & 11 & 11 \\\hline 4 & 8 & 10 \\\hline 5 & 9 & 12 \\\hline\end{array}$$ Assume that the data are normally distributed in the population.The level of significance is selected to be 0.10.If the alternative hypothesis is that the average difference is greater than zero, the null hypothesis would be rejected if the observed value of t is _______.

• A)greater than 1.533
• B)less than -1.533
• C)greater than 2.132
• D)less than -2.132
• E)equal to 2.333

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Definitions:

Assimilation

The cognitive process by which an individual incorporates new information or experiences into their existing framework of knowledge or schema.

Embryonic Stage

A critical phase of prenatal development that spans from implantation of the zygote in the uterine wall through the eighth week, where major organs and structures begin to form.

Zygote

A fertilized ovum (egg cell).

Uterine Wall

The muscular wall of the uterus, which thickens during the menstrual cycle and pregnancy, playing a key role in pregnancy and childbirth.