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3 years ago

Please help me . need your help .

Mathematics

2 answers:

NemiM [27]3 years ago

7 0

Answer: yes

Step-by-step explanation:

Arisa [49]3 years ago

3 0

Answer:

23.3 cm

Step-by-step explanation:

use Pythagoras Theorem

length BD= 16²+10²= 356

√356= 18.9 cm

length DH= 30²-18.9²= 542.8

√542.8= 23.3 cm

DH=AE

Hence, AE= 23.3 cm

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Compute the standard error for sample proportions from a population with proportion p= 0.55 for sample sizes of n=30, n=100 and

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Given Information:

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Sample size 2 = n₂ = 100

Sample size 3 = n₃ = 1000

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Answer:

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$\sigma_2 = 0.050$

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Step-by-step explanation:

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$\sigma_3 = \sqrt{\frac{0.55(1-0.55)}{1000} }$

$\sigma_3 = 0.016$

As you can notice, the standard error decreases as the sample size increases.

Therefore, the greater the sample size lesser will be the standard error.

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