Find the area of a rectangle that has a length of (x - 5) and a width of (3x + 1).
1 answer:
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Using confidence interval concepts, it is found that:
a) The point estimate is the sample mean.
b) The confidence interval is:
c) If $1411 is between the bounds of the interval yes, otherwise no.
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- At item a, it asks to provide a point estimate for the population mean, which is the sample mean
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Item b:
- In the spreadsheet, it is possible to find the <em>standard deviation for the sample</em>, thus, the t-distribution is used.
- The confidence interval will be given by:
In which:
is the sample mean.
- T is the critical value, from the t-distribution, with a two-tailed area of
and n-1 degrees of freedom.
- s is the standard deviation for the sample.
- n is the sample size.
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Item c:
We have to check if 1411 is between and
.
- If it is, the interval includes the National Average, otherwise, it does not.
A similar problem is given at brainly.com/question/24232455
Answer:
The inequality represents the length of the femur for which the woman had a height greater than 160cm.
Step-by-step explanation:
The given equation is
Where, h is woman's height in centimeters and f is length of the femur in centimeters.
If woman's height is greater than 160cm, then
Substract 60 from both sides.
Divide both sides by 2.5.
Therefore the inequality represents the lengths of the femur for which the woman had a height greater than 160cm.