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4 years ago

What is 7.43 rounded to he nearest hundredth

Mathematics

2 answers:

Elis [28]4 years ago

5 0

7.43, the 3 is the hundredth place there is no way to round this any more it would still be 7.43

vazorg [7]4 years ago

4 0

What is 7.43 rounded to he nearest hundredth?

still same number

answer:

7.43

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Answer:

$6\frac{3}{4}\ ft$

Step-by-step explanation:

we know that

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3 years ago

Find 150% of 90 Please help me

maksim [4K]

Answer:

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Step-by-step explanation:

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3 years ago

Read 2 more answers

The population standard deviation for the temperature of beers found in Scooter's Tavern is 0.26 degrees. If we want to be 90% c

siniylev [52]

Answer:

19 beers must be sampled.

Step-by-step explanation:

We have that to find our $\alpha$ level, that is the subtraction of 1 by the confidence interval divided by 2. So:

$\alpha = \frac{1 - 0.9}{2} = 0.05$

Now, we have to find z in the Z-table as such z has a p-value of $1 - \alpha$ .

That is z with a pvalue of $1 - 0.05 = 0.95$ , so Z = 1.645.

Now, find the margin of error M as such

$M = z\frac{\sigma}{\sqrt{n}}$

In which $\sigma$ is the standard deviation of the population and n is the size of the sample.

The population standard deviation for the temperature of beers found in Scooter's Tavern is 0.26 degrees.

This means that $\sigma = 0.26$

If we want to be 90% confident that the sample mean beer temperature is within 0.1 degrees of the true mean temperature, how many beers must we sample?

This is n for which M = 0.1. So

$M = z\frac{\sigma}{\sqrt{n}}$

$0.1 = 1.645\frac{0.26}{\sqrt{n}}$