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Musya8 [376]
3 years ago
14

If the population standard deviation is o=10, how large a sample is necessary to have a standard error that is less than 5 point

s?
Mathematics
1 answer:
Karo-lina-s [1.5K]3 years ago
7 0
Use the following questions & solve for n to find the sample size: sample error = o / sqrt(n). Next you would arrange equation to solve for sample size: sqrt(n) = o / sample error. Then square both sides to get: n = (o / sample error)^2.
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The length of a kitchen wall is 24 2/3 feet long. A border will be placed along the wall of the kitchen. If the border strips ar
krek1111 [17]

Total length of the kitchen wall = 24 2/3 feet.

Let us convert 24 2/3 feet into improper fracion.

24 2/3 = (24*3+2)/3 = 74/3 feet.

Length of each strip = 1 3/4 feet.

Let us convert 1/3/4 feet in improper fracion.

1 3/4 feet = (1*4+3)/4 = 7/4 feet.

Total number of strips required = (Total length of the kitchen wall) ÷ (Length of each strip)

= 74/3 feet ÷ 7/4 feet.

Let us convert division sign into multiplication, we get

74/3 × 4/7.

Multiplying across, we get

296/21.

On dividing 296 by 21, we get 14.09 approximately.

14.09 represents more than 14.

So, we can round it to the next whole number, that is 15.

Therefore, 15 strips of border are needed.

5 0
3 years ago
9-2(7-8)<br><br> Help please
yuradex [85]
9 - 2(7 - 8)
9 - 2(-1)
9 - (-2)
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6 0
3 years ago
Read 2 more answers
Paula has 6 video games. Myles has 1 more video game than paula. Which could you use to find how many video games in all.
IrinaVladis [17]

Paula = 6 video games

Myles = 1 video game + Paula(6 video games)

P + M = Total video games

M = 1 + P

P = 6

P + M = 6  + 1 = 7


4 0
3 years ago
The cost of renting a bicycle from Dan's Bike Shop is $2 for 1 hour plus $1 for each additional hour of rental time. Which of th
Vlad [161]

option B

Explanation:

The cost of renting per hour = $2

For 1 hour = $2

For each additional hour, it is $1

For 2 hours = First hour + 1(additional hour)

For 2 hours = $2 + $1(1) = 2+1 = $3

For 3 hours = $2 + $1 (2) = 2+2 = $4

For 4 hours = $2 + $1(3) = 2+3 = $5

The graph which shows this rental cost as 2, 3, 4, 5 is option B

7 0
1 year ago
Omari types 300 words in 6 minutes. How many words does he type in 2 minutes?<br> In 1 minute?
Alchen [17]

Answer:

50 words per minute.

100 words per 2 minutes.

Step-by-step explanation:

Hope this helps!

4 0
2 years ago
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