Listed below are body temperatures from five different

Ответ:

theweave2776

24.01.2022

$(a)\bar {d} =-0.34\\(b)s_{d}=0.073$

Step-by-step explanation:

$\left|\begin{array}{c|c|c}$Temperature at 8 AM$&$Temperature at 12 AM$&$Difference$\\---------&--------&------\\97.8&98.3&-0.5\\98.7&99.3&-0.6\\97.3&97.6&-0.3\\97.5&97.4& 0.1\\97.2&97.6&-0.4\end{array}\right|$

(b)

$\bar {d} $ is the sample mean of all the difference in temperature$\\\bar {d} =\dfrac{-0.5-0.6-0.3+0.1-0.4}{5} =\dfrac{-1.7}{5} =-0.34$

$(-0.5-(-0.34))^{2}=0.0256\\(-0.6-(-0.34))^{2}=0.0676\\(-0.3-(-0.34))^{2}=0.0016\\(0.1-(-0.34))^{2}=0.1936\\(-0.4-(-0.34))^{2}=0.0036\\s_{d} =\dfrac{0.0256+0.0676+0.0016+0.1936+0.0036}{5-1}=\dfrac{0.292}{4}\\s_{d}=0.073$

(d) $\mu_d$ represents the mean of the difference in body temperature at 8AM and 12AM of the population of all people.

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