What are the main units of length in the US.

Mathematics

1 answer:

arlik [135]3 years ago

3 0

Millimeters, centimeters, inches, yards, meters

You might be interested in

Find the relative minimum of y = 2x 3 + 14x 2 - 10x - 46

miss Akunina [59]

The answer is x= 23/12 OR x=1 11/12 OR x=1.916

3 0

3 years ago

Read 2 more answers

I need help on questions 9 and 10. The answers can either be -36, 20, 70 or 28

horrorfan [7]

It should be 28 not because im just saying it it is because i have done the exact same thing ask every question you can ask i can help

5 0

3 years ago

if 1/2 an apple was shared equally among 3 people. what fracton of the who apple did each person recive.

enyata [817]

Answer:

1/6

Step-by-step explanation:

1/2/3 is a sixth of an apple that all 3 people equally shared.

3 0

3 years ago

A survey was conducted that asked 1003 people how many books they had read in the past year. Results indicated that x overbar eq

Sergio [31]

Answer:

The 99% confidence interval would be given (11.448;14.152).

Step-by-step explanation:

1) Important concepts and notation

A confidence interval for a mean "gives us a range of plausible values for the population mean. If a confidence interval does not include a particular value, we can say that it is not likely that the particular value is the true population mean"

$s=16.6$ represent the sample deviation

$\bar X=12.8$ represent the sample mean

n =1003 is the sample size selected

Confidence =99% or 0.99

$\alpha=1-0.99=0.01$ represent the significance level.

2) Solution to the problem

The confidence interval for the mean would be given by this formula

$\bar X \pm z_{\alpha/2} \frac{s}{\sqrt{n}}$

We can use a z quantile instead of t since the sample size is large enough.

For the 99% confidence interval the value of $\alpha=1-0.99=0.01$ and $\alpha/2=0.005$ , with that value we can find the quantile required for the interval in the normal standard distribution.