3 years ago

Please help asap

Mathematics

1 answer:

dimaraw [331]3 years ago

6 0

Answer:

idk

Step-by-step explanation:

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1. Is 0.67
2. Is 0.0004
3. Is 0.2. DIES BOT BELONG
4. Is 0.521

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Use long division to find the quotient below.

vichka [17]

Answer:

Step-by-step explanation:

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Step-by-step explanation:

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3 years ago

How do I solve 5x - 4 = -19

ira [324]

Undo what has been done to the variable. That means to do the opposite done to the variable.
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3 years ago

A 98% confidence interval for the mean of a population is to be constructed and must be accurate to within 0.3 unit. A prelimina

BaLLatris [955]

Answer:

$n = (\frac{2.326*1.7}{0.3})^2= 173.73$

And the value for n rounded up would be n = 174

Step-by-step explanation:

We have the following info given:

$s= 1.7$ previous estimation for the deviation

$ME=0.03$ the margin of error desired

$Conf =0.98$ represent the confidence

The Margin of error is given by:

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

If we solve for the value of n we got:

$n= (\frac{z*\sigma}{ME})^2$

For this problem we know that the confidence is 98% so then the significance level would be $\alpha=0.02$ and the critical value would be:

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And replacing we got:

$n = (\frac{2.326*1.7}{0.3})^2= 173.73$

And the value for n rounded up would be n = 174

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3 years ago