2 years ago

If you get the answer can you please explain to me how you got it???

Mathematics

1 answer:

konstantin123 [22]2 years ago

7 0

Answer: 22 I got my answer from safari

Step-by-step explanation:

You might be interested in

Log20 log15-log12 log5

Pani-rosa [81]

What is this exactly?

5 0

3 years ago

A population is estimated to have a standard deviation of 9. We want to estimate the population mean within 2, with a 99% level

cupoosta [38]

Answer:

The sample required is $n = 135$

Step-by-step explanation:

From the question we are told that

The standard deviation is $\sigma = 9$

The margin of error is $E = 2$

Given that the confidence level is 99% then the level of significance is mathematically evaluated as

$\alpha = 100-99$

$\alpha = 1 \%$

$\alpha = 0.01$

Next we will obtain the critical value $\frac{\alpha }{2}$ from the normal distribution table(reference math dot armstrong dot edu) , the value is

$Z_{\frac{\alpha }{2} } = Z_{\frac{0.05 }{2} } = 2.58$

The sample size is mathematically represented as

$n = [ \frac{Z_{\frac{\alpha }{2} } * \sigma }{E} ]^2$

substituting values

$n = [ \frac{ 2.58 * 9 }{2} ]^2$

$n = 135$

3 0

3 years ago

What happens to the slope when a line with positive slope gets close to vertical

Nuetrik [128]

The value of the slope increases and becomes closer to infinity

4 0

3 years ago

Henry had $22 and Ben had $17. Henry spent twice as much as Ben and was left with half as much as Ben. The amount of money that

Cloud [144]

Answer:

Ben spent 9 dollars

Step-by-step explanation:

6 0

3 years ago

Is 7 a factor of 14 yes or no ?

Alex73 [517]

Answer:

Yes

Step-by-step explanation:

8 0

2 years ago

Read 2 more answers