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

To find the x-intercept, we let y = 0 and solve for x and to find y-intercept, we let x=0 and solve for y. Figure out the x-inte

zavuch27 [327]

Answer:

x-intercept = 2

y-intercept = 6

Step-by-step explanation:

x-intercept: 6x = 12; x = 2

y-intercept: 2y = 12; y = 6

4 0

3 years ago

Help me with this question

Scrat [10]

In my calculation it’s 4

7 0

3 years ago

Help will give brainly

Simora [160]

Answer:

Is it 72?

Step-by-step explanation:

6 0

2 years ago

Read 2 more answers

Find the cube of 20 <br><br> A. 40<br> B. 400<br> C. 800<br> D. 8000

lapo4ka [179]

The cube of 20 can be written as $20^{3}$ . Split the 20 up into 2*10. Even though we are doing the cube of this value, first do $2*3=8$ and then do $10^3=1000$ . Now multiply these numbers together so it is 8*1000=8000. Which is answer choice D. 8000

7 0

3 years ago

Read 2 more answers

Grace worked from 7:00 am to 6:30 pm. she gets paid $13 per hour and “time and a half” for any hours over 8. how much did she ge

Marrrta [24]

Hours worked between 7:00 am and 6:30 pm
1830-700= 11 hours and 30 minutes.
Pay for the first 8 hours;
8*13 hours
=$104
Pay for the remaining 4 hours and 30 minutes;
4.5*18.5
=<span>$ 83.25
</span>Total pay;
=<span>$187.25</span>

4 0

2 years ago