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Listed below are body temperatures from five different subjects measured at 8 AM and again at 12 AM.

Temperature (°F) at 8 AM: 98.4, 98.5, 97.3, 97.2, 97.8
Temperature (°F) at 12 AM: 99.2, 98.9, 97.5, 97.0, 98.1

Let the temperature at 8 AM be the first sample, and the temperature at 12 AM be the second sample.

1. Find the values of \(d\) and \(s_d\).
- \(d\) is the mean of the differences for the paired sample data.
- \(s_d\) is the standard deviation of the differences. (Type an integer or a decimal. Do not round. Round \(s_d\) to two decimal places as needed.)

2. In general, what does \(d\) represent?

A. The difference of the population means of the two populations
B. The mean value of the differences for the paired sample data
C. The mean of the means of each matched pair from the population of matched data
D. The mean of the differences from the population of matched data

Answer :

The given data consists of body temperatures from five subjects measured at 8 AM and again at 12 AM. We need to find the values of d and sy. Additionally, we need to determine the general representation of the variable 'a' in this context.

To find the values of d and sy, we need to calculate the differences between the paired measurements for each subject. The value of d represents the differences between the paired measurements, which in this case would be the temperature at 12 AM minus the temperature at 8 AM for each subject. By subtracting the corresponding values, we get the following differences: 0.8, 0.4, 0.2, -0.2, and 0.3.

The value of sy represents the standard deviation of the differences. To calculate sy, we take the square root of the sum of squared differences divided by (n-1), where n is the number of subjects.

Regarding the general representation of the variable 'a, in this context, 'a' represents the mean value of the differences for the paired sample data. It indicates the average change or shifts between the measurements at 8 AM and 12 AM. By finding the mean of the differences, we can estimate the average change in body temperature from morning to afternoon for the subjects in the sample.

'd' represents the individual differences between the paired measurements, 'sy' represents the standard deviation of those differences, and 'a' represents the mean value of the differences for the paired sample data. Please note that the provided word count includes the summary and the explanation.

Learn more about standard deviation here:- brainly.com/question/29115611

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