Answer:
There is enough evidence to say that the true average heat output of persons with the syndrmoe differs from the true average heat output of non-sufferers.
Step-by-step explanation:
We have to perform a hypothesis test on the difference between means.
The null and alternative hypothesis are:
![H_0: \mu_1-\mu_2=0\\\\H_a: \mu_1-\mu_2](https://tex.z-dn.net/?f=H_0%3A%20%5Cmu_1-%5Cmu_2%3D0%5C%5C%5C%5CH_a%3A%20%5Cmu_1-%5Cmu_2%3C0)
μ1: mean heat output for subjects with the syndrome.
μ2: mean heat output for non-sufferers.
We will use a significance level of 0.05.
The difference between sample means is:
![M_d=\bar x_1-\bar x_2=0.63-2.09=-1.46](https://tex.z-dn.net/?f=M_d%3D%5Cbar%20x_1-%5Cbar%20x_2%3D0.63-2.09%3D-1.46)
The standard error is
![s_{M_d}=\sqrt{\sigma_1^2/n_1+\sigma_2^2/n_2}=\sqrt{0.3^2/9+0.5^2/9}=\sqrt{ 0.038 } \\\\ s_{M_d}=0.194](https://tex.z-dn.net/?f=s_%7BM_d%7D%3D%5Csqrt%7B%5Csigma_1%5E2%2Fn_1%2B%5Csigma_2%5E2%2Fn_2%7D%3D%5Csqrt%7B0.3%5E2%2F9%2B0.5%5E2%2F9%7D%3D%5Csqrt%7B%200.038%20%7D%20%5C%5C%5C%5C%20s_%7BM_d%7D%3D0.194)
The t-statistic is
![t=\dfrac{M_d}{s_{M_d}}=\dfrac{-1.46}{0.194}=-7.52](https://tex.z-dn.net/?f=t%3D%5Cdfrac%7BM_d%7D%7Bs_%7BM_d%7D%7D%3D%5Cdfrac%7B-1.46%7D%7B0.194%7D%3D-7.52)
The degrees of freedom are
![df=n_1+n_2-2=9+9-2=16](https://tex.z-dn.net/?f=df%3Dn_1%2Bn_2-2%3D9%2B9-2%3D16)
The critical value for a left tailed test at a significance level of 0.05 and 16 degrees of freedom is t=-1.746.
The t-statistic is below the critical value, so it lies in the rejection region.
The null hypothesis is rejected.
There is enough evidence to say that the true average heat output of persons with the syndrmoe differs from the true average heat output of non-sufferers.
Answer:
4
Step-by-step explanation:
Answer:
-1/6
Step-by-step explanation:
= 1/3 (-1-1) x -1/4 (-1)
= 1/3 (-2) x 1/4
= -2/3 x 1/4
= -2\12
2 and 12 can cancel out each other.
so the answer will be.
= -1/6.
Answer:
Lorsque vous montez dans la voiture et sortez de l'aéroport, tournez à gauche. Lorsque vous arrivez à la bifurcation de la route, tournez à droite. Ensuite, vous continuerez à avancer. Vous devrez faire deux virages à gauche. À droite, vous verrez ma maison.
Step-by-step explanation: I had a similar project so I used mine as an example and I rewrote it. Hope this helps
Translation : When you first get in the car and exit the airport turn left. When you get to the fork in the road turn right. Then you will keep driving forward. You will have to make two left turns. To the right you will see my house.
Feel free to change up some words if you need to
9514 1404 393
Answer:
?° = 153°
Step-by-step explanation:
The measure of an arc is the same as the measure of the central angle it subtends. The arc is marked 153°. The central angle (?°) has that same measure.
?° = 153°