Answer:
z=-1.591
Step-by-step explanation:
Null Hypotheses,
![H_0 : p=0.8\\H_a: p>0.80](https://tex.z-dn.net/?f=H_0%20%3A%20p%3D0.8%5C%5CH_a%3A%20p%3E0.80)
So we use z-test for one population proportion (right-tailed test)
According to this informaton, we defined that
![\alpha=0.05](https://tex.z-dn.net/?f=%5Calpha%3D0.05)
(critical value)
So our Rejection region is ![R={z:z>1.64}](https://tex.z-dn.net/?f=R%3D%7Bz%3Az%3E1.64%7D)
![z=\frac{\bar{p}-p_0}{\sqrt{p_0(1-p_0)/n}} = \frac{0.755-0.8}{\sqrt{0.8(1-0.8)/200}}=-1.591](https://tex.z-dn.net/?f=z%3D%5Cfrac%7B%5Cbar%7Bp%7D-p_0%7D%7B%5Csqrt%7Bp_0%281-p_0%29%2Fn%7D%7D%20%3D%20%5Cfrac%7B0.755-0.8%7D%7B%5Csqrt%7B0.8%281-0.8%29%2F200%7D%7D%3D-1.591)
Not rejection.
The height of Maury's room is 8.4 ans maury is 6.6 feet tall. The distance between the celling and Maury's head is exactly 1.8. She wants to hang the celling fan 1.875 feet away from the celling that is all the head room she has the celling fan would hit her head.
Answer:1608.5
Step-by-step explanation:
Answer:
4 gigabytes
Step-by-step explanation:
Equation: 68.50=48+5x
Answer:
Number of students in district = 3,055 students
Step-by-step explanation:
Given:
Ratio [Teachers to students] = 2 : 47
Total number of teachers in district = 130
Find:
Number of students in district
Computation:
Number of students in district = Total number of teachers in district[47/2]
Number of students in district = 130[47/2]
Number of students in district = 65[47]
Number of students in district = 3,055 students