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Yuki888 [10]
1 year ago
12

While measuring specimens of nylon yarn taken from two spinning machines, it was found that 9 specimens from the first machine h

ad a mean denier of 9.17 with a standard deviation of 1.81, while 12 specimens from the second machine had a mean denier of 7.33 with a standard deviation of 1.48. Test at the 0.05 level of significance that the mean denier of the first machine is higher than that of the second machine by at least 1.5.
Mathematics
1 answer:
stepladder [879]1 year ago
8 0

kaaaaaaaaaaaaaaaaabbbichaStep-by-step explanation:

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If 9 = c, then c = 9. What algebraic equality property justifies the above statement?
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Symmetric property is the correct term
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2 years ago
Suppose you were exploring the hypothesis that there is a relationship between parents’ and children’s party identification. Wou
alukav5142 [94]

Answer:

No

It could be purely due to chance.

Step-by-step explanation:

A population is defined as the whole group which has the same characteristics. For example a population of the college belongs to the same college . But a sample may be an element of a population.

So it is not necessary for a population to have the same characteristics as the sample.

But it is essential for the sample to have at least one same characteristics as the population.

So we would not be correct in inferring that such a relationship also exists in the population.

It is a hypothesis which can be true or false due to certain conditions or limitations as the case maybe.

For example in a population of smokers some may be in the habit of taking cocaine. But a sample of cocaine users does not mean the whole population uses it.

It could be purely due to chance if we find out that there is a relationship between parents’ and children’s party identification in the population.

7 0
2 years ago
If you have 60 million barrels and you have 14% kerosene and 34% gasoline what is the total production of gasoline and kerosene
Drupady [299]
48% or 48/100 only in percents and fractions
6 0
2 years ago
Read 2 more answers
2.087 greater or less than 2.15
Doss [256]
Less than because 2.15 is a tenth greater.
6 0
2 years ago
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A function f(x) has x intercepts of -3 and -5. What is the constant term in the function?
Anon25 [30]

Answer:

The constant term in the function is 5

Step-by-step explanation:

we have

f(x)=x^{2}+8x+b

where

b is the y-intercept or the constant term of the function

Remember that

The x-intercept is the value of x when the value of the function is equal to zero

so

For x=-3 ----> f(x)=0

For x=-5 ----> f(x)=0

substitute any of the intercepts in the function

For x=-3

0=(-3)^{2}+8(-3)+b

0=9-24+b

0=-15+b

b=15

f(x)=x^{2}+8x+15

Verify with the other intercept

For x=-5

0=(-5)^{2}+8(-5)+15

0=25-40+15

0=0 ---> is true

therefore

The constant term in the function is 5

3 0
2 years ago
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