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3 years ago

What is the absolute value of 17

Mathematics

2 answers:

Lera25 [3.4K]3 years ago

4 0

The absolute value of a number is its distance away from 0.
The number 17 is also 17 away from 0, so

|17| = 17

Anika [276]3 years ago

3 0

17 because absolute values is basically the number in a positive format

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qwelly [4]

Answer:

a) Because the confidence interval does not include 0 it appears that there

is a significant difference between the mean level of hemoglobin in women and the mean level of hemoglobin in men.

b)There is 95% confidence that the interval from −1.76 g/dL<μ1−μ2<−1.62 g/dL actually contains the value of the difference between the two population means μ1−μ2

c) 1.62 < μ1−μ2< 1.76

Step-by-step explanation:

a) What does the confidence interval suggest about equality of the mean hemoglobin level in women and the mean hemoglobin level in men?

Given:

95% confidence interval for the difference between the two population means:

−1.76g/dL< μ1−μ2 < −1.62g/dL

population 1 = measures from women

population 2 = measures from men

Solution:

The given confidence interval has upper and lower bound of 1-62 and -1.76. This confidence interval does not contain 0. This shows that the population means difference is not likely to be 0. Thus the confidence interval implies that the mean hemoglobin level in women and the mean hemoglobin level in men is not equal and that the women are likely to have less hemoglobin than men. This depicts that there is significant difference between mean hemoglobin level in women and the mean hemoglobin level in men.

There is 95% confidence that the interval −1.76 g/dL<μ1−μ2<−1.62 g/dL actually contains the value of the difference between the two population means μ1−μ2.

If we interchange men and women then

confidence interval range sign will become positive.
μ1 becomes the population mean of the hemoglobin level in men
μ2 becomes the population mean of the hemoglobin level in women
So confidence interval becomes:

1.62 g/dL<μ1−μ2<1.76 g/dL.

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