Answer:
We will not reject the null hypothesis.
There is not enough evidence to support the claim that the mean age of death
-row inmates is different from 36.2 years.
Step-by-step explanation:
Consider the provided information.
The average age of an inmate in death row in 1989 was 36.2 years of age.
The sociologist collects a sample of 32 death-row inmates and finds that their mean age is 38.9 with a standard deviation of 9.6 years. Test the Sociologist’s claim at 0.05 significance level.
From the above information.
, ![H_a: \mu \neq 36.2](https://tex.z-dn.net/?f=H_a%3A%20%5Cmu%20%5Cneq%2036.2)
,
,
, n=32
This is a two sided test, with df = 32-1 = 31 and the critical values are
.
Now find the z score as shown:
![z=\frac{\bar x-\mu}{\frac{\sigma}{\sqrt{n}}}](https://tex.z-dn.net/?f=z%3D%5Cfrac%7B%5Cbar%20x-%5Cmu%7D%7B%5Cfrac%7B%5Csigma%7D%7B%5Csqrt%7Bn%7D%7D%7D)
Substitute the respective values:
![z=\frac{38.9-36.2}{\frac{9.6}{\sqrt{32}}}](https://tex.z-dn.net/?f=z%3D%5Cfrac%7B38.9-36.2%7D%7B%5Cfrac%7B9.6%7D%7B%5Csqrt%7B32%7D%7D%7D)
![z=\frac{2.7}{\frac{9.6}{5.6568}}}](https://tex.z-dn.net/?f=z%3D%5Cfrac%7B2.7%7D%7B%5Cfrac%7B9.6%7D%7B5.6568%7D%7D%7D)
![z=1.59](https://tex.z-dn.net/?f=z%3D1.59)
Since, 1.591 doesn’t lie in the critical region, hence we will not reject the null hypothesis.
There is not enough evidence to support the claim that the mean age of death
-row inmates is different from 36.2 years.
Answer:
They roam 958 acres combined.
Step-by-step explanation:
612 + 346
= 958
Answer:
525
Step-by-step explanation:
she is making $15 an hour so if you times 35 and 15 you get 525
mark as brainliest please !!!!
Answer:
Step-by-step explanation:
y
=
x
Use the slope-intercept form to find the slope and y-intercept.
Tap for more steps...
Slope:
1
y-intercept:
0
Any line can be graphed using two points. Select two
x
values, and plug them into the equation to find the corresponding
y
values.
Tap for more steps...
x
y
0
0
1
1