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RSB [31]
2 years ago
7

An engineer has designed a valve that will regulate water pressure on an automobile engine. The valve was tested on 260260 engin

es and the mean pressure was 44 lbs/square inch. Assume the variance is known to be 0.640.64. If the valve was designed to produce a mean pressure of 4.14.1 lbs/square inch, is there sufficient evidence at the 0.020.02 level that the valve does not perform to the specifications? State the null and alternative hypotheses for the above scenario.
Mathematics
2 answers:
Scrat [10]2 years ago
5 0

Answer:

u= 4.7

u< 4.7

NeTakaya2 years ago
5 0
The correct answer is U = 4.7.
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kicyunya [14]

Answer:

Step-by-step explanation:

20.1metres / seconds

We want to convert to metres /minutes

It is known that 60seconds=1minutes

So therefore, either we multiply 20.1metres/seconds by

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Or

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Multiplying with the above does not change the magnitude of the quantity because it is like we are multiplying by 1.

Since we want to cancel seconds and it is in the denominator, so to do this we need to multiply with the fraction that has the seconds as numerator.

So, we are going to multiply with 60seconds/1minutes

20.1metres/seconds ×60seconds/minutes

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7 0
3 years ago
Read 2 more answers
Identify the Texas Governor who resigned his office in order to lead Texas Troops in the U.S. vs Mexican War.
sergeinik [125]

Answer:

Sam Houston

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7th Governor of Texas

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Lieutenant Edward Clark

Step-by-step explanation:

3 0
3 years ago
Draw the meaning of bar diagram
gladu [14]
Draw a bar and draw little squares inside the box not the bar and then shade the boxes this will represent the number
8 0
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Vikki [24]

Answer:

B

Step-by-step explanation:

The problem is simple because they use powers of 10. When something is multiplied by a power of ten, it is essentially moving the decimal point over for every power.

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4.0x10^13= 40000000000000

Although 4 itself is less than 9.46, since is is being multiplied by 10^13, it will be one decimal place bigger.

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nika2105 [10]

Answer:      The slope of p is 1/3

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If the lines are perpendicular, this means they are opposite.

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2 years ago
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