Answer: b. 0.98
Step-by-step explanation:
The formula to find the maximum error of the estimated mean :
(1)
, where
= standard deviation
n= Sample size
z* = Critical z-value.
As per given , we have
![\sigma=5](https://tex.z-dn.net/?f=%5Csigma%3D5)
n=100
Critical value for 95% confidence interval = z*=1.96
Put these values in the formula (1), we get
![E=(1.96)\dfrac{5}{\sqrt{100}}](https://tex.z-dn.net/?f=E%3D%281.96%29%5Cdfrac%7B5%7D%7B%5Csqrt%7B100%7D%7D)
![E=(1.96)\dfrac{5}{10}=0.98](https://tex.z-dn.net/?f=E%3D%281.96%29%5Cdfrac%7B5%7D%7B10%7D%3D0.98)
Hence, the maximum error of the estimated mean quality for a 95% level of confidence is 0.98.
Therefore , the correct answer is b. 0.98 .
9514 1404 393
Answer:
x = -2
Step-by-step explanation:
Line q is the horizontal line y = 6, so the perpendicular line will be vertical. In order for it to go through the point (-2, 3), the equation must be ...
x = -2
Answer:
3/5
Step-by-step explanation:
There are 12 window seats and 8 aisle seats giving us a total of 20 seats.
12/20 = 3/5
Therefore, the probably the next person will be assigned a window seat is 3/5.
2/9=2.50
Allowence=2.50x9 divided by which gives you an answer of 11.25
Hope this helps you!