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Alex
3 years ago
12

Find the area of each figure below. Round to the nearest hundredth when necessary. 9.6 25.4 m 12 m 10 m

Mathematics
1 answer:
adelina 88 [10]3 years ago
6 0
The First person that wrote there answer is correct
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A study was done to determine the average number of homes that a homeowner owns in his or her lifetime. For the 50 homeowners su
ipn [44]

Answer:

The 95% confidence interval for the true average number of homes that a person owns in his or her lifetime is (4,6.2).

Step-by-step explanation:

We have the standard deviation for the sample, which means that the t-distribution is used to solve this question.

The first step to solve this problem is finding how many degrees of freedom,which is the sample size subtracted by 1. So

df = 50 - 1 = 49

95% confidence interval

Now, we have to find a value of T, which is found looking at the t table, with 49 degrees of freedom(y-axis) and a confidence level of 1 - \frac{1 - 0.95}{2} = 0.975. So we have T = 2.0096

The margin of error is:

M = T\frac{s}{\sqrt{n}} = 2.0096\frac{3.8}{\sqrt{50}} = 1.1

In which s is the standard deviation of the sample and n is the size of the sample.

The lower end of the interval is the sample mean subtracted by M. So it is 5.1 - 1.1 = 4

The upper end of the interval is the sample mean added to M. So it is 5.1 + 1.1 = 6.2.

The 95% confidence interval for the true average number of homes that a person owns in his or her lifetime is (4,6.2).

7 0
2 years ago
The table below represents different radios of a teaspoon of sugar to ounces of<br> Ice tea
daser333 [38]

Step-by-step explanation:

How are we supposed to answer theres no table

<3

6 0
3 years ago
Someone find x !!!!!!
BartSMP [9]
14. 128
15.25
16.90
those should be right
6 0
3 years ago
Does the point (7 5) satisfy the equation y = x + -2
masha68 [24]

Answer:

Yes

Step-by-step explanation:

7 = x

5 = y

5 = X + - 2

5 = X - 2

If X is 7 then

5 = 7-2

5=5

yes

3 0
3 years ago
Use the figure and flowchart proof to answer the question:
KatRina [158]

Answer:

tSubstitution Property of Equality

Step-by-step explanation:

I took the test and that was the answer

4 0
3 years ago
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