Answer:
Step-by-step explanation:
Given that
sample size n = 55: x bar = 654.16 and s = sample sd = 162.34
Std error = 162.34/sqrt 55 = 21.889
For 95% CI we can use t critical value as population std dev is not known.
df = 54
t critical = 2.004
Margin of error = 2.004 *21.889 = 43.866
Confidence interval lower bound = 654.16-43.866 =610.294
Upper bound = 654.16+43.866=698.026
Confidence interval rounded off at 95% = (610.29, 698.23)
Answer:
-3 i hope this helps :)
Step-by-step explanation:
(4,7) (7,-2)
x1 y1 x2 y2
<u>-2 - 7 </u> = <u>-9</u> = -3
7 - 4 3
Answer:
3:15 hours
Step-by-step explanation:
i don't know I just took the test
Answer:
$125.97
Step-by-step explanation:
To answer this question, simply plug the known values into the equation. We know that 100 is the principal (starting amount), 0.08 is the interest rate as a decimal, and t is 3 years.
Now plug in all those values to the given formula: B = p(1 + r)^t
Solve, and you end up with $125.9712, rounded to $125.97
