3 years ago

What is the most reasonable metric measure for the height of a flag pole?

Mathematics

2 answers:

valkas [14]3 years ago

7 0

Meters meters meters meters meters meters

DanielleElmas [232]3 years ago

4 0

Meters meters meters meters meters meters

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Solve for the difference `7.2-3.67`

storchak [24]

The correct answer is 3.53

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2 years ago

You have a 36 foot fence that have a 4 equal side you painted 1/4 what fraction have you completed

k0ka [10]

we have completed 9/36=1/4 of the fence

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3 years ago

Pls answer quickly

Tasya [4]

Answer:

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Step-by-step explanation:

I need the photo

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3 years ago

A study sampled 350 upperclassmen (Group 1) and 250 underclassmen (Group 2) at high schools around the city of Houston. The stud

iris [78.8K]

Answer:

$-0.048$

Do not reject $H_0:P_1-P_2=0$

Step-by-step explanation:

From the question we are told that

Sample size $n_1=350$

Sample size $n_2=250$

Sample proportion 1 $\hat P= \frac{25}{350} =>0.07$

Sample proportion 2 $\hat P= \frac{19}{250} =>0.076$

95% confidence interval

Generally for 95% confidence level

Level of significance

$\alpha = 1-0.95=>0.05$

$\alpha /2=\frac{0.05}{2} =>0.025$

Therefore

$Z_a_/_2=1.96$

Generally the equation for confidence interval between $P_1 - P_2$ is mathematically given as

$(\hat P_1-\hat P_2)\pm Z_a_/_2\sqrt{\frac{\hat P_1(1-\hat P_1)}{n_1}+\frac{\hat P_2(1-\hat P_2)}{n_2} }$

$(0.07-0.076)\pm 1.96\sqrt{\frac{0.07(1-0.07)}{350}+\frac{0.076(1-0.076)}{250} }$

$(0.07-0.076)\pm 1.96\sqrt{4.66896*10^-^4 }$

$(-0.006)\pm 0.042$

$(-0.006)- 0.042=>-0.048$

$(-0.006)+ 0.042=>0.036$

Therefore

Confidence interval is

$-0.048$

Conclusion

Given the confidence interval has zero

Therefore do not reject $H_0:P_1-P_2=0$

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2 years ago

Solve for x.

irakobra [83]

Answer:

Smaller x = 1/5

Larger x = 4

Step-by-step explanation:

Firstly,

(x-4) = 0

x-4 = 0

x = 4

Secondly,

-5x +1 = 0

-5x = -1

x= 1/5

Hope it helps!

4 0

3 years ago