Answer:
40-80-42-1,000,000= -1,000,082
Step-by-step explanation:
bc calculator
Answer:
the answer is -9
Step-by-step explanation:
3(2 - 5)
6 - 15
-9
Rhombuses have acute and obtuse angles, so if it gives one just subtract it from 180
6×4×5 = 120 in^3; 12×8×10 = 960 in^3; Prism B's volume is 8 times greater than Prism A's volume
Answer: a.) $50188 to $57812
Step-by-step explanation: <u>Confidence</u> <u>Interval</u> (CI) is an interval of values in which we are confident the true mean is in.
The interval is calculated as
x ± ![z\frac{s}{\sqrt{n} }](https://tex.z-dn.net/?f=z%5Cfrac%7Bs%7D%7B%5Csqrt%7Bn%7D%20%7D)
a. For a 95% CI, z-value is 1.96.
Solving:
54,000 ± ![1.96.\frac{6000}{\sqrt{12} }](https://tex.z-dn.net/?f=1.96.%5Cfrac%7B6000%7D%7B%5Csqrt%7B12%7D%20%7D)
54,000 ± ![1.96\frac{6000}{3.464}](https://tex.z-dn.net/?f=1.96%5Cfrac%7B6000%7D%7B3.464%7D)
54,000 ± 1.96*1732.102
54,000 ± 3395
This means the interval is
50605 < μ < 57395
<u>With a 95% confidence interval, the mean starting salary of college graduates is between 50605 and 57395 or </u><u>from 50188 to 57812$.</u>
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b. The mean starting salary for college students in 2017 is $50,516, which is in the confidence interval. Therefore, since we 95% sure the real mean is between 50188 and 57812, there was no significant change since 2017.