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
sammy [17]
3 years ago
15

Identify the value of the CRITICAL VALUE(S) used in a hypothesis test of the following claim and sample data:

Mathematics
1 answer:
disa [49]3 years ago
5 0

Answer:

C

Step-by-step explanation:

The critical value we are asked to state in this question is the value of the z statistic

Mathematically;

z-score = (x- mean)/SD/√n

From the question

x = 11.58

mean = 12

SD = 1.93

n = 80

Substituting this value, we have

z= (11.58-12)/1.93/√80 = -1.946

You might be interested in
I need help to start the problem.
Snezhnost [94]
You would get x by itself first and go from there.
7 0
3 years ago
Please help me with these I’m so confused (best answer = Brainliest)
lana66690 [7]
For the box plot, plot the minimum and maximum on a line. then find the median of the data. divide the data into two groups and find the median of each and graph those, then draw the boxes. IQR is the third quartile minus the first. a quartile is a quartile regardless of size. both boxes are quartiles and both tails are too. hope that makes sense
6 0
4 years ago
Which expression has the same value as 46.1-97.2?
Natali [406]

Answer:

A 46.1+(-97.2)

Step-by-step explanation:

Its the same as going 46.1 - 97.2 because your adding a negitive to a positive you canceling out the addition with the negitive so your now subtracting

5 0
3 years ago
Identify the equation in slope-intercept form for the line containing the point (-4,1) and (2,3)
oksano4ka [1.4K]

Answer:

The point slope formula is

(y−y1)=m(x−x1)

Where m = the slope calculated as y2−y1x2−x1

(x1,y1)(x2,y2)

(-4 , 1) (-2 , 3)

Solve for the slope

m = 3−1−2−(−3) = 21 = m = 2

(y−3)=2(x−(−2)) Plug in known values.

y−3=2(x+2) Simplify signs

y−3=2x+4 Use Distributive property

y=−2x+4+3 isolate the y variable

answer (y = −5x+7 ) Simplify

7 0
3 years ago
Triangle XYZ was dilated by a scale factor of 2 to create triangle ACB and sin ∠X = 5 over 5 and 59 hundredths.
Vikentia [17]

The relationship between Traingle XYZ and ACB is that they are similar triangles. tanX = tanA = 5 over 2 and 5 tenths, where

  • AC = 2 x  XY
  • CB = 2 x  YZ

<h3>What is the dilation about?</h3>

Triangle XYZ was dilated by a scale factor of 2 to create triangle ACB, hence XYZ and ACB are similar triangles.

Angles Y and C are said to measure 90 degrees, and angles A and X are known to be congruent. Thus:

tanX = tanA = 5 over 2 and 5 tenths

AC = 2 x  XY

CB = 2 x  YZ

Another way to solve for it is by:

Note that Dilation of the triangle ΔXYZ was by a factor of "2".

Since m∠Y = m∠C = 90º   - given

ΔXYZ and ΔACB are said to be right triangles.

Since ∠X ≅ ∠A   - given

Then ∠X and ∠Z are  said to becomplementary angles

Since m∠Z = 90° - m∠X   -- given

Then ∠A and ∠B are said to be complementary angles

Since m∠B = 90° - m∠A  --- given

Then, ∠Z ≅ ∠B

Therefore ΔXYZ ∼ ΔACB are  similar triangles because it has its corresponding sides to be proportional and its corresponding angles to be congruent.

Note:

sin ∠X = 5/5.59

sin ∠X = YZ/XY

YZ = 5  seen in ΔXYZ

XZ = 5.59 seen in hypotenuse of ΔXYZ

Then one need to Calculate the length of one aspect of XY:

XY = √((5.59)2 - 52)

= 2.4996

Note CB/YZ = 2

CD = 2*YZ = 2 x 5

= 10

AC/XY = 2

AC = 2* XY

= 2 x 2.4996

= 4.999

Learn more about dilation from:

brainly.com/question/27517432

#SPJ1

7 0
2 years ago
Other questions:
  • I need help ASAP i'm doing math and we are do Addition with mixed numbers
    10·1 answer
  • Ali bounces a ball while Tim counts. Tim counts 11 tens and 2 ones. How many bounces did Tim count?
    14·1 answer
  • Mia ran around 0.10 of the school track. Sam ran around 0.5 of the playground. Sam says he ran farther. With the information giv
    15·2 answers
  • Solve the problem on the image down below:<br><br><br><br> ty :P
    9·2 answers
  • I will give you Brainiest if you are right.
    6·2 answers
  • Question is number 1 part a​
    7·1 answer
  • A researcher claims that 45% of U.S. adults think that the IRS is not aggressive enough in pursuing people who cheat on their ta
    5·2 answers
  • Help me with these following questions please! marking brainliest
    7·1 answer
  • What does x equal with this equation <br> x/6-33= -27
    15·2 answers
  • The sum of 3/4 and a number is equal to 1/4 subtracted from six times the number. Find the number.
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!