The life in hours of a biomedical device under development in the laboratory is known to be approximately normally distributed. A random sample of 15 devices is selected and found to have an average life of 5625.1 hours and a sample standard deviation of 226.1 hours.

Required:
a. Construct and interpret a 95% (two sided) confidence interval for the population standard deviation of the life of a biomedical device.
b. Test the hypothesis that the true mean life of a biomedical device is greater than 5500 using the P-value approach.

Answer:

Option 4 is correct

x° + 126° = 180° and value of x is 54°

Step-by-step explanation:

Here, In a given Triangle two sides are equal i.e., Isosceles Triangle.

We know that, in a triangle the sum of all angles Is 180°.

If two sides are equal then also two angles are also equal of that sides.

Now,

63° + 63° + x° = 180°

x° + 126° = 180°

Now, To find the value of x

x° + 126° = 180°

x° = 180° - 126°

x = 54°

Thus, The value of x is 54°

x° + 126° = 180°

54° + 126° = 180°

180° = 180°

Hence, L.H.S = R.H.S

-TheUnknownScientist

Answer:

the value x is 54

I am sure

Answer:

C

Step-by-step explanation:

Answer:

Probability that he was taught by using method A is 14/17

Step-by-step explanation:

Following probabilities are given -  

P (F|A) = 0.2

P (F|B) = 0.1

P (A) = 0.7

P (B) = 0.3

Now, P(A|F) = { P (F|A)* P(A)}/{{ P (F|A)* P(A)} + P (F|B)* P(B)}}

P(A|F) = (0.2*0.7)/( (0.2*0.7)+(0.1*0.3)) = 14/17

Answer:

The polygon that is made is a triangle

Step-by-step explanation:

Answer:

1st box-1

2nd box-3

3rd box-130

Step-by-step explanation:

On the number line, 13 metres is in line with 1 second. So, that means the hummingbird flies 13m/s.

Then to work out the second box, for how much time it takes to travel 39 metres, you would have to do 39÷13=3. This means that in 3 seconds, the hummingbird flies 39 metres in 3 seconds.

To work out how many metres the hummingbird flies in 10 seconds, you would have to do 13×10=130. The reason why you times 13 by 10 is because the hummingbird does 13 metres in 1 second, but we want 10 seconds, so we times it.

Hope this helps :)

Answer:

1st box-1

2nd box-3

3rd box-130

Step-by-step explanation:

the other person gets the credit he did it before me

Answer:

The answer is "[tex]39.01^{\circ}[/tex]"

Step-by-step explanation:

[tex]\to R= 828\\\\\to F_1= 401\\\\\to F_2=477\\\\\to \bold{R=\sqrt{F_1^2+F_2^2+2F_1F_2 \cos \theta}}[/tex]

[tex]828=\sqrt{401^2+477^2+2 \times 401 \times 477 \cos \theta}\\\\828=\sqrt{160801+227529+382554 \cos \theta}\\\\828=\sqrt{388330+382554 \cos \theta}\\\\[/tex]

square the above equation:

[tex](828)^2=(\sqrt{388330+382554 \cos \theta})^2\\\\[/tex]

[tex]685584 =388330+382554 \cos \theta\\\\685584 -388330=382554 \cos \theta\\\\297254=382554 \cos \theta\\\\\cos \theta=\frac{297254}{382554}\\\\\cos \theta=0.777025\\\\\theta= \cos^{-1} 0.777025\\\\\theta= 39.01^{\circ}[/tex]

Step-by-step explanation:

Ans 1

Two eukaryotic animal cell organelles that have roles similar to the organs of the human digestive system are lysosome and mitochondria. ... Mitochondria is like the small intestine, it is responsible for converting the food we eat into nutrients and minerals needed for the cell

Ans2

The Golgi processes proteins made by the endoplasmic reticulum (ER) before sending them out to the cell. ... Proteins must make their way through the stack of intervening cisternae and along the way become modified and packaged for transport to various locations within the cell (Figure 1).

Answer:

Answer is D. 1572 square units.

Answer: $7.95+$1t ?

Step-by-step explanation:

Answer:

I assume the answer would be the burger plus toppings is equal to cost so

7.95+t*1.00=c

Answer:

ggyfuae5iyrsi6rs6esyleslysyrslur

Answer:

Step-by-step explanation:

7.84 = 8.

Answer:

Original Price: $28

Discount Rate: 28%

new price=?

we have

discount:

28% of 0riginal Price=28/100×$28=$7.84

now

new Price=original -discount price=$28-7.84=$20.16 is your answer

Answer:

Step-by-step explanation:

The volume of the freezer part:

Total volume is:

9514 1404 393

Answer:

  see attached

  (x, y) = (8, 4)

Step-by-step explanation:

The relations given in the problem statement let you write two equations. One for the number of shots, and one for the number of points. The variables x and y are defined in the problem statement.

  x + y = 12 . . . . . total number of shots

  x + 2y = 16 . . . . total number of points

__

These equations are easily plotted by considering their x- and y-intercepts. The x-intercepts of the equations are found when y=0, so are 12 and 16, respectively.

The y-intercepts are found when x=0, so are 12 and 8, respectively. The two lines are shown in the attached. The first is blue; the second is red. Their point of intersection at (x, y) = (8, 4) is circled.

Answer:

the answer is (x, y) = (8, 4)

Answer:

4.5

Step-by-step explanation:

4 * 1.5 = 6

3* 1.5 = 4.5

Answer:

D

Step-by-step explanation:

demos

Answer:

$31.23

Step-by-step explanation:

104.1% x 30 = 31.23

Answer:

50 degrees

Step-by-step explanation:

Hope this helps and have a great day!!!

Answer:

angle l is 50 degrees i belive

Step-by-step explanation:

Answer:

The quotient of x and 11.

Step-by-step explanation:

Given:

[tex] \frac{x}{11} [/tex]

Required:

Write the expression in words

Solution:

In the expression given, we have the numerator which is the dividend (x), and the denominator which is the divisor (8).

So, we are dividing x into 8 parts.

A quotient is the result you get when you divide the dividend by the divisor.

✅In describing the expression in words, we would use the following phrase:

The quotient of x and 11.

The dividend is mentioned first before the dividend.

Answer:

5/16,-3

Step-by-step explanation:

I didn't actually solve this by myself, I used this website to solve this.

Answer:

b

Step-by-step explanation:

Answer:

27 lawns.

Step-by-step explanation:

45÷10

4.5

So every hour they mow 4.5 lawns.

Now do 4.5 • 6

So 27 lawns

Hope this helps

Answer:

c=26

Step-by-step explanation:

By using pythagoram thoerem

c^2=a^2+b^2

c^2=(10)^2+(24)^2

c^2=100+576

c^2=676

c=sqrt(676)

c=26

c=26

+6, -6

Step-by-step explanation:

if the equation is x^2 = 36 then the solving for x we get the square root of 36 which is positive or negative 6

Answer:

$50,460.87 of interest has been accrued.

Step-by-step explanation:

Richard deposits $193.67 every month into his mortgage.

Each year as 12 months. So after 30 years he will have deposited:

$193.67*12*30 = $69,721.2

At the end of 30 years, he has a balance of $120,182.07. What interest has accrued (been earned) over 30 years?

Interest is total subtracted by deposits. So

120,182.07 - 69,721.2 = $50,460.87

$50,460.87 of interest has been accrued.

Answer:

First blank - SSS congruent condition

Second blank - Congruent

Answer: This looks famiiar to me btw which school do u go to? :)

Answer: 13 is the first one and the second one is 15

Step-by-step explanation: