Answer:
We want to construct a confidence interval at 99% of confidence, so then the significance level would be
and the value of
. And for this case since we know the population deviation is not appropiate use the t distribution since we know the population deviation and the best quantile assuming that the population is normally distributed is given by the z distribution.
And if we find the critical value in the normal standard distribution or excel and we got:

And we can use the following excel code:
"=NORM.INV(0.005,0,1)"
Step-by-step explanation:
For this case we have the following info given:

We want to construct a confidence interval at 99% of confidence, so then the significance level would be
and the value of
. And for this case since we know the population deviation is not appropiate use the t distribution since we know the population deviation and the best quantile assuming that the population is normally distributed is given by the z distribution.
And if we find the critical value in the normal standard distribution or excel and we got:

And we can use the following excel code:
"=NORM.INV(0.005,0,1)"
Answer:
Step-by-step explanation:
1) 36:81
2)81 pints
3)14.625 gallons of paint
The correct answer would be (4*5)w because you would multiple the number of pages that she reads per week then you multiply that by how many weeks she reads.
Answer:
15,000
Step-by-step explanation:
5000-*0.6=3000 *5 =15,000
Answer:
7×7+7
49+7
=56
order of operations multiply first then add