3 years ago

Does 5 hundreds = 50 tens?

Mathematics

2 answers:

Scilla [17]3 years ago

8 0

Yes, It actually does

Nina [5.8K]3 years ago

6 0

Yes 5 hundreds = 50 tens

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Find the minimum sample size necessary to be 99% confident that the population mean is within 3 units of the sample mean given t

SVEN [57.7K]

Answer:

The minimum sample size required is 207.

Step-by-step explanation:

The (1 - α) % confidence interval for population mean μ is:

$CI=\bar x\pm z_{\alpha /2}\frac{\sigma}{\sqrt{n}}$

The margin of error of this confidence interval is:

$MOE=z_{\alpha /2}\frac{\sigma}{\sqrt{n}}$

Given:

$MOE=3\\\sigma=29\\z_{\alpha /2}=z_{0.01/2}=z_{0.05}=2.576$

*Use a z-table for the critical value.

Compute the value of n as follows:

$MOE=z_{\alpha /2}\frac{\sigma}{\sqrt{n}}\\3=2.576\times \frac{29}{\sqrt{n}} \\n=[\frac{2.576\times29}{3} ]^{2}\\=206.69\\\approx207$

Thus, the minimum sample size required is 207.

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3 years ago

Half note as a decimal?

GrogVix [38]

0.5 or .5 (remember, half a whole note is a half note)

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3 years ago

What is 18+ (8+4-9)= Please show step by step

8_murik_8 [283]

Answer: 21

Reasoning:

5 0

3 years ago

Read 2 more answers

Tuan is playing a game, but the spinner is incomplete. If the numbers in the sections of the spinner represent the probabilities

ioda

The sum of the numbers should total to 1. Let us say that x is the missing number, therefore:

x + ¼ + ¼ + 1/5 = 1

x = 1 – ¼ - ¼ - 1/5

The numbers should have similar denominator:

x = 20/20 – 5/20 – 5/20 – 4/20

x = 6/20

x = 3/10

8 0

3 years ago

48<img src="https://tex.z-dn.net/?f=4%5Csqrt%7Bx%7D%2012192%5C%5C" id="TexFormula1" title="4\sqrt{x} 12192\\" alt="4\sqrt{x} 121

pentagon [3]

Answer:

= x 3048

Step-by-step explanation:

6 0

2 years ago