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fgiga [73]
3 years ago
13

the pressure in pounds per square feet changes as an object is submerged into water. Use the informatition in the table below. W

hat would be an estimate of the pressure on an object submerged to a depth of 20 feet
Mathematics
1 answer:
padilas [110]3 years ago
5 0
Depends on the density and weight of the object plus acceleration. I need the information in the Table to devise an answer
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A student working on a summer internship in the economic research department of a large corporation studied the relation between
OverLord2011 [107]

Answer:

Step-by-step explanation:

Hello!

Y: sales of a product in a marketing district (million dollars)

X: population in a marketing district (million persons)

The objective is to test if there is a linear association between the sales of a product and the population of a marketing district.

Parameter; Estimated Value; 95 Percent Confidence limits

Intercept          7.43119                -1.18518        16.0476

Slope             0.755048            0.452886       1.05721

a.

To test if there is or not an association between these two variables, you have to do a hypothesis test for the slope. If the slope is equal to zero, there is no linear association between the two variables, if the slope is different from zero, then there is a linear association between the variables.

So the student's hypotheses are:

H₀: β = 0

H₁: β ≠ 0

The data the student used to conclude is the 95%CI for the slope [0.452886;1.05721]

To be able to decide over an hypothesis test using a confidence interval there are several conditions to be met, one of them is that the confidence level and the significance level should be complementary, this means that if the interval was constructed using 1 - α= 0.95, then the hypothesis test should be conducted with a significance level of α= 0.05.

Considering that the value of the slope stated in the null hypothesis is not included in the given interval, i.e. zero is not included in the CI, then the decision is to reject the null hypothesis.

Then it can be concluded that there is a linear association between the sales of a product and the population in a marketing district.

b.

Although in the context of the variables of study it makes no sense that the estimate of the intercept takes negative numbers, keep in mind that mathematically if possible and correct. This means that obtaining a negative estimate of the intercept does not represent a calculation error or problem for the regression model. In general, when this occurs, a footnote is made indicating has no biological meaning or sense in context.

After all, what you have done with the estimate is a mathematical assertion of the social variables.

I hope it helps!

3 0
3 years ago
What is 1+1+2+3+4+5+6+7+8+9+10<br> Hi
JulsSmile [24]

Answer:

56

Step-by-step explanation:

1 + 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10

 2 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10

    4 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10

      7 + 4 + 5 + 6 + 7 + 8 + 9 + 10

        11 + 5 + 6 + 7 + 8 + 9 + 10

         16 + 6 + 7 + 8 + 9 + 10

           22 + 7 + 8 + 9 + 10

             29 + 8 + 9 + 10

               37 + 9 + 10

                 46 + 10

                    56

Hope this helps!

Also hi

8 0
2 years ago
Can someone please help me !!
horsena [70]

Answer:

(3a + 2)(a + 3)

Step-by-step explanation:

6 0
2 years ago
Find the midpoint of the segment with the following endpoints. (5,3) and (1,9)
OLEGan [10]

Answer:

(3, 6)

Step-by-step explanation:

If you create a mini graph, like I did, you would have seen that the middle point is at the co-ordinates (3,6). I have attached a image to this reply, with my "graph". (Sorry if its a little ugly, but that doesn't matter, the math does.)

8 0
3 years ago
Example: Find the circumference of the circle with a radius of 5 inches. Solution: Step 1: Write down the formula: IC = 2tr Step
GREYUIT [131]

Answer:

1. The circumference of any circle equals two times its radius multiplied by pi (π, approximately 3.14). We can also say it equals pi times its diameter.

Thank you

7 0
3 years ago
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