Answer:
True
Step-by-step explanation:
Confidence interval for banking service in a given confidence level can be calculated as M±ME where
- M is the mean banking service in the sample and
- ME is the Margin of Error
margin of error (ME) is calculated using the formula
ME=
where
- t is the corresponding statistic in the given confidence level
- s is the standard deviation of the sample(or of the population if it is known)
t-statistic for 99% confidence level is always bigger than 95% confidence level which makes Margin of Error bigger and thus confidence interval wider.
Answer:
11r + 10s
Step-by-step explanation:
Answer:
1ton
Step-by-step explanation:
Answer:
y = -1/4(x +4)² +4
Step-by-step explanation:
The equation of a parabola with focus (a, b) and directrix y=d can be written using the form ...
y = 1/(2(b-d))(x -a)² +(b+d)/2
<h3>Application</h3>
We are given (a, b) = (-4, 3) and d=5. Using these values in the above form gives the equation ...
y = 1/(2(3-5))(x -(-4))² +(3+5)/2
y = -1/4(x +4)² +4
The product would be negative. When you multiply two negatives, you get a positive. Then you multiply by a positive again to get positive. When you multiply by negative, you get a negative, then when you multiply by positive, you get negative which is your final answer
Hope this helps!
