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
blondinia [14]
3 years ago
8

True or false: given a sample mean of 2.1 and a sample standard deviation of 0.7 from a sample of 10 data points, a 90% confiden

ce interval will have a width of 2.36.
Mathematics
1 answer:
iris [78.8K]3 years ago
4 0
Your answer is false.

You might be interested in
The values of x and y are proportional. Determine the constant of proportionality(k)
Studentka2010 [4]
<h3>The constant of proportionality is k = 5</h3>

For direct proportion equations, you divide the y value over its corresponding x value to get the value of k.

For example, the point (x,y) = (2,10) is on the diagonal line. So k = y/x = 10/2 = 5.

Another example: the point (x,y) = (6, 30) is also on the same diagonal line, so k = y/x = 30/6 = 5 is the same result as before.

You can use any point on the diagonal line as long as it is not (0,0). This is because division by zero is not allowed.

side note: the direct proportion equation y = k*x becomes y = 5*x which is the graph of that diagonal line. The slope is m = 5, the y intercept is b = 0. All direct proportion graphs go through the origin as shown in the diagram.

3 0
3 years ago
How many medians a triangle can have?
OverLord2011 [107]

\qquad \qquad\huge \underline{\boxed{\sf Answer}}

Medians are the line segments that divides a side of Triangle into two equal parts, each having equal length. and since triangles have 3 sides, they have 3 medians as well.

5 0
2 years ago
Read 2 more answers
If the unit price for watermelon is $0.24 per pound and Jared pays $1.68 for a watermelon, how many pounds does his watermelon w
Vanyuwa [196]
The watermelon weighs 7 pounds

Proof: 

remove the decimal points then divide 168 by 24

168/24 = 7

The watermelon weighs 7 pounds
4 0
3 years ago
Read 2 more answers
1-Solve: m - 9 = -13
timofeeve [1]
1: m=-4
2: b=-4
3: -9=k
4: C=-11.4
5:X<10
4 0
3 years ago
A sphere has a diameter of 14.5 inches.
dlinn [17]

Answer:

≈ 660.5 in²

Step-by-step explanation:

The surface area (A) of a sphere is calculated using the formula

A = 4πr² ← r is the radius

Given diameter = 14. 5 then radius = 7.25, thus

A = 4π × 7.25² = 4π × 52.5625 ≈ 660.5 in²

4 0
3 years ago
Other questions:
  • YOU HAVE 8 COINS IN A BAG. 3 OF THEM ARE UNFAIR AND THEY HAVE 60% CHANCE OF COMING UP WITH HEAD WHEN FLIPPED. YOU RANDOMLY CHOSE
    14·1 answer
  • What is 2(x+10)=2(3x-8)
    12·2 answers
  • Claire says that if she runs at an average rate of 6 miles per hour. It will take her about 2 hours to run 18 miles. Do you agre
    7·1 answer
  • A sample of n = 5 scores has a mean of m = 8. one new score is added to the sample and the new mean is calculated to be m = 9. w
    5·2 answers
  • Which is an equation of a direct proportion?
    11·1 answer
  • Solve these<br><br><br><img src="https://tex.z-dn.net/?f=%20%7Bx%7D%5E%7B2%7D%20%20-%205x%20%2B%206" id="TexFormula1" title=" {x
    12·2 answers
  • Consider the equation below. What is the discrimination of the equation?<br> -3x2+27x-63=0
    9·1 answer
  • Please help. -9x+12x=3(2-x)
    5·1 answer
  • Evaluate the expression 6^2-(8–4^2+7
    6·2 answers
  • Entrance to a state park costs $6 per car, plus $2 per person in the vehicle. How might you determine the entrance cost for a bu
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!