Answer: A. Approximately 0.017 pounds
Step-by-step explanation:
Formula to find the margin of error :
, where z* = critical value for confidence interval , s= standard deviation , n= sample size.
As per given , we have
s= 0.15 pound
n= 300
Critical value for 95% confidence = 1.96
Then, Margin of error for 9%% confidence interval will be :
Hence, they can expect a margin error of 0.017 pound (approximately.)
Thus , the correct answer is A. Approximately 0.017 pounds
You divide 1540 by 220 to get 7. We do this because we want to find how many times 220 can go in 1540 which shows the amount of ft tall the scale will be. We can check it by doing 7 × 220 which is 1,540.
The building will be 7 ft tall in the scale.
Answer:
$173.06
Step-by-step explanation:
Think of "her new monthly salary" as the sum of "her monthly salary plus a 6.5% increase. Multiplying "her monthly salary" by 1.065 will produce a result that includes both the original monthly salary and the increase:
1.065($162.50) = $173.06
Answer:
90.36
Step-by-step explanation:
0.6²+4.5(y÷ 0.6)
0.36 + 4.5(12÷0.6)
0.36 + 4.5×20
0.36+ 90
90.36
