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
vivado [14]
3 years ago
10

Suppose we know that a confidence interval is (71,95), with a sample mean of x¯=83.

Mathematics
1 answer:
lyudmila [28]3 years ago
5 0

Answer:

12

Step-by-step explanation:

Recall :

Confidence interval = xbar ± margin of error

Xbar = 83

Confidence interval = (71, 95)

We could use either the lower or upper boundary to obtain an integer for the margin of error :

Using the upper boundary :

Upper boundary = Xbar + margin of error

95 = 83 + margin of error

Margin of Error = 95 - 83

Margin of Error = 12

You might be interested in
when graphed on a coordinate plane, Bumby avenue can be represented by the equation y=-4x-7. Primrose Avenue can be represented
erastova [34]

Answer:

Bumby Avenue is represented by the line:

y = -4*x - 7.

Primrose Avenue can be represented with:

8x + 2y = 17.

We may want to find the point where both avenues intersect.

Let's isolate y in this second equation:

2y = 17 - 8x

y = 17/2 - 8x/2 = -4*x + 17/2

Now we can see that the equation for Primrose Avenue has the same slope than the equation for Bumby Avenue, and when two linear equations have the same slope, means that the lines are parallel.

Then we can conclude that Primrose Avenue and Bumby Avenue are parallel, so they never meet eachother.

7 0
3 years ago
What does Point P on the number line represent? (Use the hyphen for negative numbers, such as −9) Number line from negative 8 to
marissa [1.9K]

Answer:

-7

Step-by-step explanation:

there are 16 increments in total, and half are labeled

so the answer is -7 because if the increments are 1 and it is left of zero, so do 7*-1 because it is to the left

7 0
3 years ago
What is the slope of y=-7/3x+4
alexgriva [62]

Answer:

-7/3

Step-by-step explanation:

slope formula:

y = mx + b

the m is the slope value

6 0
3 years ago
Read 2 more answers
(-5.1)&(-3,-8) find the slope
Dafna1 [17]

Answer:

-9/2

Step-by-step explanation:

The formula for slope is [ y2-y1/x2-x1 ].

-8-1/-3-(-5)

-9/2

Best of Luck!

4 0
3 years ago
if x/b-c=y/c-a=z/a-b, prove that x+y+x=0.please help me ... this is my homework. I will follow you plz . anyone.​
irinina [24]

Answer:

..........  I Got You <3

Hope you can read it

4 0
3 years ago
Other questions:
  • What is the volume of this?
    11·1 answer
  • The heights of twelve month old boys are normally distributed with a mean of 29.8 inches and a standard deviation of 1.2 inches.
    15·1 answer
  • What is the value of x and m
    10·1 answer
  • What is the answer to 7y+13=5y-3
    12·2 answers
  • When Marsha went shopping, she decided to buy some nuts to take home. She bought 1 3/4 lbs. of cashews, 5/8 lbs. of almonds, and
    6·1 answer
  • What is 5% increase of $40,000?
    13·2 answers
  • What is the value of the expression 3+2x (with an exponent of 3 on top of x) when x = 2?
    15·1 answer
  • Does anyone know the answer?​
    9·2 answers
  • Need help here qwq<br><br><br><br><br><br> Hhhhh TOO SHORT MHMM
    9·1 answer
  • Nov 05,<br> What is an equation of the line that passes through the points (3,-6) and<br> (-7, - 6)?
    9·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!