In an Experiment to Determine Whether There Is a Systematic

question 13

Multiple Choice

In an experiment to determine whether there is a systematic difference between the weights obtained with two different mass balances, six specimens were weighed, in grams, on each balance. The following data were obtained:
$\begin{array}{crr}\hline \text { Specimen } & {\mathrm{A}} & {\mathrm{B}} \\\hline 1 & 7.97 & 7.95 \\2 & 10.27 & 10.25 \\3 & 6.70 & 6.70 \\4 & 10.22 & 10.21 \\5 & 7.89 & 7.88 \\6 & 5.10 & 5.07 \\\hline\end{array}$
State a conclusion using the $\alpha = 0.05$ level of significance.

• A) Reject \(H _ { 0 }\). The mean difference appears to differ from zero.
• B) Do not reject \(H _ { 0 }\). There is insufficient evidence to conclude that the mean difference differs from zero.

---

Definitions:

Low-fat Diet

A diet that restricts the intake of fats, particularly saturated fats and cholesterol, to promote heart health and reduce obesity risk.

Activity Intolerance

A state where an individual has insufficient physical or psychological energy to endure or complete required or desired daily activities.

Decreased Oxygen Saturation

A drop in the percentage of oxygen saturated in the blood, indicating potential respiratory or circulatory issues.

Productive Cough

Sudden expulsion of air from the lungs that effectively removes sputum from the respiratory tract and helps clear the airways.