The correct answer is x=-2
Answer:
b
Step-by-step explanation:
Answer:
<h3>73220±566.72</h3>
Step-by-step explanation:
The formula for calculating the confidence interval is expressed as;
CI = xbar ± z*s/√n
xbar is the sample mean = $73,220
z is the z score at 99% CI = 2.576
s is the standard deviation = $4400
n is the sample size = 400
Substitute the given values into the formula;
CI = 73,220 ± 2.576*4400/√400
CI = 73,220 ± 2.576*4400/20
CI = 73,220± (2.576*220)
CI = 73220±566.72
Hence a 99% confidence interval for μ is 73220±566.72
113.10 feet, 16,286 square inches, 12.566 square yards, 10.507 square meters, 105,071 square centimeters
Answer:
The final amount is 550.93.
Step-by-step explanation:
Here, the given amount is 468.
Now 8% of the given amount is 
⇒ 8% of 468 = 37.44
So, the New amount = Initial Amount + 8% increase
= 468. + 37.44 = 505.44
Now 9 % of the new amount 505.44 is
[tex]\frac{9}{100} \times 505.44 = 45.4896/tex]
⇒ 9% of 505.44 = 45.4896
So, the Final amount = New Amount + 9% increase
= 505.44 + 45.4896 = 550.93
Hence, final amount is 550.93.