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Vinvika [58]
3 years ago
7

PLEASE HELP "Given a sample mean of 3.56 and a standard deviation of 0.98, which value falls within the 90% confidence interval

for a sample size of 45?"
A.
3.21
B.
3.28
C.
3.83
D.
3.57
Mathematics
1 answer:
trasher [3.6K]3 years ago
7 0

Answer:

D. 3.57

Step-by-step explanation: Edmentum

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Assessment timer and count Assessment items Item 5 Louise bought 114 pounds of roast beef at $2.00 per pound and ​ 212 ​pounds o
nikklg [1K]

Answer:

228+318=556

Step-by-step explanation: in conclusion that's alot of meat

7 0
3 years ago
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At a benefit​ concert, fifteen bands have volunteered to perform but there is only enough time for five of the bands to play. Ho
Iteru [2.4K]

Answer:

360,360

Step-by-step explanation:

So we only have 5 spots, but 15 bands to fill those spots.

For the first spot, we can choose from any of the 15 bands, so we have 15 choices.

For the second spot, we can choose from the 14 remaining bands (because we already chose one for the first spot), so we have 14 choices.

For the third spot, by similar reasoning as above, we have 13 choices; for the fourth spot, 12 choices; and for the last spot, we have 11 choices.

We realize that for each of the 15 possible bands in the first spot, we still have 14 possible bands for the second spot, and so on. Thus, we know to multiply instead of add.

Our answer is: 15 * 14 * 13 * 12 * 11 = 360,360

6 0
3 years ago
If a snail crawls 12 centimeters per hour, how long will it take for the snail to travel 1 meter
Pavlova-9 [17]

Answer: 8 1/3 hours or 500 minutes

Step-by-step explanation:

Keep in mind that there are 100 centimeters in a meter.

The snail moves at a pace of 12 cm/h, and needs to go 100 cm.  You can just divide 100/12 to get 8 1/3, which is how many hours (groups of 12 cm) it takes for the snail to travel 100 cm (1 meter).

If necessary, you can also multiply 8 1/3 by 60 to get the number of minutes the snail takes.  8 times 60 is 480, and 1/3 of an hour is 20, so add 480+20 to get 500 minutes.

5 0
3 years ago
A 3 foot tall globe standing next to a woman cast an 8 ft shadow. if the woman cats a shadow that is 16ft long , then how tall i
My name is Ann [436]

The woman is 6 foot tall

<h3>What is proportion?</h3>

Proportion can be defined as the mathematical comparison of two numbers.

These numbers could be numbers, elements, set or people

From the information given, we have that;

  • The globe is 3 feet and casts a shadow of 8ft
  • The woman cast a shadow of 16ft and is x feet tall

So,

if the globe is 3 foot tall and casts a shadow of 8ft

Then the woman is x foot tall to cast a shadow of 16ft

cross multiply

8x = 24

Make 'x' the subject

x = 48/ 8

x = 6 foot

Thus, the woman is 6 foot tall

Learn more about proportion here:

brainly.com/question/1781657

#SPJ1

3 0
2 years ago
PLSSS HELP IF YOU TURLY KNOW THISS
solniwko [45]

Answer:

super simple its blueprints!

Step-by-step explanation:

7 0
2 years ago
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