High School

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

Find the values of \( \bar{d} \) and \( sd \). In general, what does \( \bar{d} \) represent?

| Temperature (°F) at 8 AM | Temperature (°F) at 12 AM |
|--------------------------|---------------------------|
| 98.2 | 97.7 |
| 99.1 | 99.4 |
| 97.3 | 97.6 |
| 97.3 | 97.1 |
| 97.9 | 98.2 |

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

Find the values of \( \bar{d} \) and \( sd \). (Type an integer or a decimal. Do not round.)

Answer :

The value of the mean of all values of d (Hd) is -0.04.

As per data the following temperatures:

Temperature (°F) at 8 AM 98.3

Temperature (°F) at 12 AM 99.1 98.8 99.2 97.1 97.4 97.8 97.2

Temperature (F) at 8 AM 99.3 98.8 97.6 97.7 97.1

Temperature (°F) at 12 AM 99.1 99.2 97.8 972 97.4

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

d = x₂ - x₁

Now, we need to find the values of d for all five subjects.

Therefore, d is as follows:

d₁ = 99.3 - 99.1

= 0.2

d₂ = 98.8 - 99.2

= -0.4

d₃ = 97.6 - 97.8

= -0.2

d₄ = 97.7 - 97.2

= 0.5

d₅ = 97.1 - 97.4

= -0.3

In general, Hd represents the mean of all values of d.

Thus, the value of Hd is:

Hd = (0.2 + -0.4 + -0.2 + 0.5 + -0.3) / 5

= -0.04

Thus, the value of Hd is -0.04.

To learn more about Mean from the given link.

https://brainly.com/question/1136789

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Complete question is,

Temperature (°F) at 8 AM 98.3 Temperature (°F) at 12 AM 99.1 98.8 99.2 97.1 97.4 97.8 97.2 Listed below are body temperatures from five different subjects measured at 8 AM and again at 12 AM. Find the values of dands. In general, what does Hd represent? Temperature (F) at 8 AM 99.3 98.8 97.6 97.7 97.1 Temperature (°F) at 12 AM 99.1 99.2 97.8 972 97.4 Let the temperature at 8 AM be the first sample, and the temperaturo at 12 AM be the second sample. Find the values of d and is Type an integer or a decimal. Do not round)