Answer:
The answer is "(27.030,29.770)"
Step-by-step explanation:
![(n)= 49](https://tex.z-dn.net/?f=%28n%29%3D%2049)
![(\sigma) = 6](https://tex.z-dn.net/?f=%28%5Csigma%29%20%3D%206)
![(CI) = \bar{x}\pm z^*_{\frac{\alpha}{2}} \frac{\sigma}{\sqrt{n}}](https://tex.z-dn.net/?f=%28CI%29%20%3D%20%5Cbar%7Bx%7D%5Cpm%20z%5E%2A_%7B%5Cfrac%7B%5Calpha%7D%7B2%7D%7D%20%5Cfrac%7B%5Csigma%7D%7B%5Csqrt%7Bn%7D%7D)
![z^*_{\frac{\alpha}{2}}\ for \ 89\%\ confidence = 1.598 \\\\\text{Using z table }\\\\ NORM.S.INV(1-\frac{(1-0.89)}{2})](https://tex.z-dn.net/?f=z%5E%2A_%7B%5Cfrac%7B%5Calpha%7D%7B2%7D%7D%5C%20for%20%5C%2089%5C%25%5C%20confidence%20%3D%201.598%20%5C%5C%5C%5C%5Ctext%7BUsing%20z%20table%20%7D%5C%5C%5C%5C%20NORM.S.INV%281-%5Cfrac%7B%281-0.89%29%7D%7B2%7D%29)
![CI = 28.4 \pm 1.598 \times \frac{6}{\sqrt{49}}=(27.030,29.770)](https://tex.z-dn.net/?f=CI%20%3D%2028.4%20%5Cpm%201.598%20%5Ctimes%20%20%5Cfrac%7B6%7D%7B%5Csqrt%7B49%7D%7D%3D%2827.030%2C29.770%29)
Answer:
360°
Step-by-step explanation:
Sum of exterior angle of any polygon = 360
Sum of exterior angle of pentagon = 360
What type of question is this
Answer:
A
Step-by-step explanation:
PEMDAS means always do parenthesis first, which means subtract 10-6=4