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astraxan [27]
3 years ago
11

Here are the median Annual Salaries for two different people: Level of Education Bachelor's Degree Master's Degree Median Annual

Salary $52,900 $68,100 If each works for 36 years, how much more will the person with the master's degree earn over that time?
Mathematics
1 answer:
Pavlova-9 [17]3 years ago
7 0

Answer: $547200

Median salary of masters older is 68,100

Total after 36 years= 68,100*36 = $2,451,600

Median Salary of BSc holder is $52,900

Total median salary after 36 years is 52,900*36 = 1,904,400

The difference is $2,451,600-1,904,400 = 547,200

The person with Masters will earn $547,200 after 36 years

Step-by-step explanation:

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A study sampled 350 upperclassmen (Group 1) and 250 underclassmen (Group 2) at high schools around the city of Portland. The stu
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Answer:

-0.061 < P_1 -P_2< 0.025

Step-by-step explanation:

Give data:

n_1 = 350

n_2 =250

x_1 = 23

x_2 = 21

\hat{P} 1 = \frac{x_1}{n_1} = \frac{23}{350} = 0.066

\hat{P} 2 = \frac{x_2}{n_2} = \frac{21}{250} = 0.084

for 95% confidence interval

\alpha = 1 - 0.95 = 0.05 and \alpha/2 = 0.025

z_{\alpha/2} = 1.96  from standard z- table

confidence interval for P_1  and P_2 is

\hat{P} 1 - \hat{P} 2 \pm z_{\alpja/2} \sqrt{\frac{\hat{P} 1(1-\hat{P} 1)}{n_1} +\frac{\hat{P} 2(1-\hat{P} 2)}{n_2}}

(0.066 - 0.084) \pm 1.96 \sqrt{\frac{0.066(1-0.066)}{350} +\frac{0.084(1-0.084)}{250}}

-0.018 \pm 0.043

confidence interval is

-0.018 - 0.043 < P_1 -P_2

-0.061 < P_1 -P_2< 0.025

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Hope this helps! :D


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Answer:

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Step-by-step explanation:

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6^{2}  + 9^{2}  = x^{2}

x^{2} = 36 + 81 = 117\\x = \sqrt{117} = 3\sqrt{13}= 10.8

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