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
Ksenya-84 [330]
3 years ago
9

NEED HELP WITH THESE 3 QUESTIONS, NEED QUICK WILL GIVE BRAINLIST!

Mathematics
1 answer:
True [87]3 years ago
5 0

Answer:

not saying this to get brainlist just helping it is b i think

Step-by-step explanation:

You might be interested in
Simplify: j + 5 + 5c
irina [24]
The answer is 5
c
+
j
+
5
5 0
3 years ago
Amy pays $25 to enter a state fair, plus $3 for each ride. Which of the following equations represents her total cost?
ella [17]
Y = 3x + 25 <== ur equation
7 0
4 years ago
Read 2 more answers
Please Help! Multiple Choice!
Katyanochek1 [597]

Using the z-distribution, the p-value would be given as follows:

b) 0.0086.

<h3>What are the hypothesis tested?</h3>

At the null hypothesis we test if the means are equal, hence:

H_0: \mu_D - \mu_C = 0

At the alternative hypothesis, it is tested if they are different, hence:

H_1: \mu_D - \mu_C \neq 0

<h3>What are the mean and the standard error for the distribution of differences?</h3>

For each sample, they are given as follows:

  • \mu_D = 12, s_D = \frac{5.2}{\sqrt{73}} = 0.6086
  • \mu_C = 14, s_C = \frac{4.1}{\sqrt{81}} = 0.4556

Hence, for the distribution of differences, they are given by:

  • \overline{x} = 12 - 14 = -2.
  • s = \sqrt{0.6086^2 + 0.4556^2} = 0.76

<h3>What is the test statistic?</h3>

The test statistic is given by:

z = \frac{\overline{x} - \mu}{s}

In which \mu = 0 is the value tested at the null hypothesis.

Hence:

z = \frac{\overline{x} - \mu}{s}

z = \frac{-2 - 0}{0.76}

z = -2.63.

Using a z-distribution calculator, for a two-tailed test, with z = -2.63, the p-value is of 0.0086.

Hence option B is correct.

More can be learned about the z-distribution at brainly.com/question/13873630

#SPJ1

4 0
2 years ago
He sum of two numbers is 43 and the difference is 5. What are the numbers ?
lord [1]

Answer:

24,19

Step-by-step explanation:

24+19=43

24-19=5

4 0
3 years ago
Identify a number that results in a 4-digit-number when 156,350 is subtracted from it
jekas [21]

160,000 - 156,350 =3,650

7 0
3 years ago
Other questions:
  • Subtracting: (-3n-6n4+6n3) -(3n3-9n4+n)
    15·1 answer
  • In the 6/49 lottery game, a player picks six numbers from 1 to 49. how many different choices does the player have if repetition
    8·1 answer
  • Find all the critical values
    10·1 answer
  • Suppose the supply curve of portable radio rentals in Golden Gate Park is given by P = 5 + 0.1Q, where P is the daily rent per u
    6·1 answer
  • Can someone help please ?!?
    12·1 answer
  • Fabio and Carlos play on a basketball team together. In the last game, Fabio had
    15·1 answer
  • What is the definition of vertical angles
    15·2 answers
  • Tenia began reading a book in her English class. She read 75 pages in class before winter break. Tenia reads the same number of
    8·1 answer
  • A delivery truck is transporting boxes of two sizes: large and small. The combined weight of the large box and a small box is 70
    12·1 answer
  • Complete each
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!