1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Finger [1]
2 years ago
13

The sum of two numbers increased by 5

Mathematics
1 answer:
Brut [27]2 years ago
4 0

Answer:

If the sum is x, x+5

Step-by-step explanation:

You might be interested in
The article "Measuring and Understanding the Aging of Kraft Insulating Paper in Power Transformers" (IEEE Electrical Insul. Mag.
givi [52]

Answer:

Step-by-step explanation:

Hello!

You have the data corresponding to 17 observations on the degree of polymerization for paper specimens whose viscosity times concentration fell in a certain range.

a) Boxplot attached.

Box: The 2 quantile (Me) appears to be in the middle of the box, the distance between the 1st quantile and the second quantile appears to be equal than the distance between the 2nd quantile and the 3rd quantile. The mean (black square) is greater than the 2nd quantile. In general, the distribution inside the box appears to be symmetrical (comparing just the Me<X[bar], perhaps slightly right-skewed)

Whiskers: The upper whisker is approximately twice as long as the lower whisker. There are no visible outliers in the data set.

In general, it appears as if the data set is right-skewed.

b) I would be more comfortable with a more symmetrical boxplot, but this one shows enough symmetry to be able to assume that the variable may have a normal distribution.

c) If we assume the normal distribution of the variable, you can use a student t to estimate the true value of the average degree of polymerization of paper:

[X[bar] ± t_{n-1;1-\alpha /2} * \frac{S}{\sqrt{n} }]

95% CI: t_{16;0.975}= 2.120

X[bar]= 438.29

S= 15.14

[438.29 ± 2.120 * \frac{15.14}{\sqrt{17} }]

[430.47;446.03]

With a 95% confidence level, you'd expect the interval [430.47;446.03] to include the true value of the average degree of polymerization of paper.

d) and e)

For these two items, you have to use the calculated CI in c) to decide whether or not there is significant evidence to conclude that two possible values of μ are plausible.

To decide over a hypothesis test using a CI several conditions should be met:

1) The hypothesis has to be two-tailed, and for the same parameter estimated in the interval

2) Both the CI and the Hypothesis test should have complementary levels, this means that if the CI was made using a confidence level of 1 - α= 0.95, then the test should have a significance level of α= 0.05

If these conditions are met, the decision rule is:

If the interval doesn't include the value of the parameter stated in the null hypothesis, then you reject the null hypothesis.

If the interval includes the value of the parameter stated in the null hypothesis, then you do not reject the null hypothesis.

d) μ=440?

Hypothesis:

H₀: μ = 440

H₁: μ ≠ 440

α: 0.05

95% CI: [430.47;446.03]

440 is included in the interval, the decision is to not reject the null hypothesis.

Using a 5% significance level, there is significant evidence to conclude that the population mean of the degree of polymerization of paper is 440.

e) μ=450?

H₀: μ = 450

H₁: μ ≠ 450

α: 0.05

95% CI: [430.47;446.03]

450 is not included in the interval, the decision is to reject the null hypothesis.

At a level of 5%, the decision is to reject the null hypothesis, this means that the population mean of the degree of polymerization of paper is different than 450.

I hope it helps!

3 0
2 years ago
G * 9 = 3.6 solve for G what is it​
larisa86 [58]
G = 2.5

Use inverse operations. 9 / 3.6 = 2.5.
8 0
2 years ago
The cost of downloading a book from a certain website is $5.99. The cost of downloading a video is $7.99. Tatum's mom downloads
zaharov [31]
The Answer Is 57.92 But the easiest way to do it is Rounding it
4 0
3 years ago
Read 2 more answers
Question 1(Multiple Choice Worth 5 points)
ioda
15/31 is the answer
7 0
2 years ago
Write the degree of the following polynomials.<br>a⁴+a³b²+a²b²+b⁵​
Whitepunk [10]

Answer:

downloadable content of the year and I have a nice day ahead of

3 0
2 years ago
Read 2 more answers
Other questions:
  • What is the median house price?
    5·1 answer
  • Sally drove 150 miles in 2 1/2 hours. What is her average speed in miles per hour.
    10·2 answers
  • What is the solution to the nearest tenth to the equation below?<br><br> 0.3y = -2
    12·1 answer
  • The original price of an airplane ticket is $990. How much will Hazel pay if she buys it during the 20% off sale?
    7·1 answer
  • Please help (no links or you are reported)
    9·1 answer
  • What is the square unit of this figure?
    6·1 answer
  • A cardiologist is interested in the average recovery period for her patients who have had heart attacks. Match the vocabulary wo
    9·1 answer
  • Which point represents the value of | -1/2 |
    15·2 answers
  • |5c -3|= 1<br> Solve for C (this is homework help-)
    13·2 answers
  • A circle with radius of 2 cm sits inside a
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!