All categories

3 years ago

Computer use.

Mathematics

1 answer:

dedylja [7]3 years ago

3 0

Answer:

The margin of error will be approximately =

(c.) 1.6

Step-by-step explanation:

Sample of 12th-grade students = 197

Average hours spent on computer per week = 23.5 hours

Total hours spent = 4,625 (197 * 23.5) hours

Standard deviation = 8.7 hours

Confidence interval = 99%

Square root of sample size = $\sqrt{x}$ = 14.04

Standard deviation/square root of sample size = 8.7/14.04 = 0.6196

Z value at 99% confidence = 2.58

Margin of error = 0.6196 * 2.58

= 1.59857

= 1.6

You might be interested in

The cost of a ticket t will be no more than $26

OLEGan [10]

Answer: t $\leq \\\\$ 26

Step-by-step explanation:

3 0

2 years ago

Which best describes the relationship between the lines?

Bogdan [553]

Answer: A.parallel

When graphed both have the same slope and never intersect or touch at any point.

7 0

3 years ago

Each square below represents one whole.

geniusboy [140]

Answer:

???69

Step-by-step explanation:

5 0

3 years ago

Read 2 more answers

What's the answer to that?

taurus [48]

Answer:

Area = 105.133

Step-by-step explanation:

First you need to find the area of both shapes.

The area of a rectangle is length x width

A= 10*8

So the area of the rectangle is 80ft^2

The area of a circle is πr^2

Area = π4^2, but it's only a half circle so you need to divide that answer by two.

Area = π4^2 = 50.265

Then divide by 2 because it's a half circle

50.265/2= 25.132ft^2

Lastly, you need to add both areas

80+25.132= 105.133ft^2

6 0

3 years ago

Read 2 more answers

There were 6,954 cases filed with the Supreme Court. Of these only 82 were decided by the Supreme Court. What percentage was dec

Sveta_85 [38]

Answer:

Hey there!

The percentage is 82/6954, which you can find to be around 0.011, or 1.1%.

Hope this helps :)

6 0

4 years ago