Ask question

Ask question

All categories

3 years ago

13

People were polled on how many books they read the previous year. How many subjects are needed to estimate the number of books r

ead the previous year within one book with 99% confidence? Initial survey results indicate that sigmaequals12.4 books.

1 answer:

Dmitry_Shevchenko [17]3 years ago

8 0

n = [z*s/E]^2

n = [2.5758*14.1/1]^2 = 1320 (rounded up)

You might be interested in

PLS HELP WILL GIVE BRAINIEST

stiks02 [169]

Answer: Pipes

Step-by-step explanation: Pipes transfer water around and veins transfer blood around the body

4 0

2 years ago

Read 2 more answers

Write the standard form of the equation of line through (3, -1) with a slope of -1.

kirill115 [55]

The standard form of a line: $Ax+By=C$ .

The point-slope form: $y-y_1=m(x-x_1)$

We have the point (3, -1) and the slope m = -1. Substitute:

$y-(-1)=-1(x-3)$

$y+1=-x+3$ <em>add x to both sides</em>

$x+y+1=3$ <em>subtract 1 from both sides</em>

$\boxed{x+y=2}$

5 0

3 years ago

Write an equation for n times a only using addition

AlekseyPX

N*x*a=n+x+a

<span>If n=1, x=2 and a=3.</span>

6 0

3 years ago

How long is it from 17:42 to 18:11?

olya-2409 [2.1K]

Answer:29 segundos

Step-by-step explanation:

4 0

3 years ago

Read 2 more answers

Solve the inequality<br> 3/10 ≥ k - 3/5

balandron [24]

Answer:

The answer to your question is $k \leq \frac{9}{10}$ or (-∞ , 9/10]

Step-by-step explanation:

To solve inequality is similar to solve and equation, we just need to find the values of "k" in order than the inequality be true.

$k - \frac{3}{5} \leq \frac{3}{10}$

Solve for "k"

$k \leq \frac{3}{10} + \frac{3}{5}$

$k \leq \frac{3}{10} + \frac{6}{10}$

$k \leq \frac{9}{10}$

Then the answer is

$k \leq \frac{9}{10}$ or (-∞ , 9/10]

8 0

3 years ago