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attashe74 [19]
3 years ago
7

A coin-operated drink machine was designed to discharge a mean of 6 ounces of coffee per cup. In a test of the machine, the disc

harge amounts in 20 randomly chosen cups of coffee from the machine were recorded. The sample mean and sample standard deviation were 6.13 ounces and 0.23 ounces, respectively. If we assume that the discharge amounts are normally distributed, is there enough evidence, at the 0.05 level of significance, to conclude that the true mean discharge, differs from 6 ounces?
Mathematics
1 answer:
Anastaziya [24]3 years ago
7 0

Answer:

Step-by-step explanation:

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(03.01 LC)
vampirchik [111]

Answer:

√7 units, √98 units

Step-by-step explanation:

Pythagorean theorem

a^2+b^2=c^2. So 9+b^2=16. So b^2=7. So b=√7

a^2+b^2=c^2. SO 49+49=c^2. So 98=c^2. So c=√98.

4 0
3 years ago
Read 2 more answers
I really need help with these questions
Alona [7]

Answer:

£10.91

Step-by-step explanation:

72p is 1kg of potatoes

1kg of carrots is 62p

10kg of potatoes is £7.20 add 3 extra kg's

which is £2.16

add £2.16 with £7.20 = £9.36

2kg of carrots is £1.24 add an extra half of kg an you get £1.55

4 0
3 years ago
The picture below shows a container that Jeff uses to freeze water: A cylinder is shown with base diameter of 8 centimeters and
Butoxors [25]
Okay, first we need to figure out what one would make. We need to figure out the area of the base x height. The diameter is 8 so we will cut that to 4 so we can do piR2! 3.14x16 would be 50.24. Then we mutiply that by 10 to get 502.4cm3! Okay, now we would divide 2000/502.4 to find out how many times we would have to make the containers to get to 2000. The answer is 3.98, which we will have to round up since its asks for the minimum and you cant make a container 3.98 times. So the answer is 4!
5 0
3 years ago
Write an expression that can be used to find 4x275 using mental math and properties of numbers
insens350 [35]
(4 x 200) + (4 x 70) + (4 x 5)
3 0
3 years ago
I don’t understand this can someone help?
Anon25 [30]

Answer:

no inglis sorry Xdxdxd y no se entiende xd

5 0
3 years ago
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