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
Fofino [41]
3 years ago
11

True or false: other things being equal, the confidence interval for the mean will be wider for 95% confidence than for 90% conf

idence.
Mathematics
1 answer:
KonstantinChe [14]3 years ago
8 0
This phrase is True.

Hope this helps.
You might be interested in
A marble is selected at random from a jar containing 4040 red​ marbles, 5050 yellow​ marbles, and 1010 green marbles. find the t
Elenna [48]
The answer will be total green plus total red divided by all existing marbles:
(1010 + 4040) / (1010 + 4040 + 5050) = 5050 / 10100 = 1/2 = 0.5

Answer: 0.5
7 0
3 years ago
Matt made a large rug using red, green, and blue carpet tiles.
Temka [501]

Answer:

Matt used 65 carpet tiles.

Step-by-step explanation:

8 0
3 years ago
Roots of Quadratics 50 PTS!!!
noname [10]

The values of k for the different quadratic equation solutions are as follows

a  the equation 2x² - x + 3k = 0 has two distinct real roots

  • k < 1/24

b. the equation 5x² - 2x + (2k − 1) = 0 has equal roots

  • k = 3/5

ci the equation -x² + 3x + (k + 1) = 0 has real roots

  • k > -3.25

d the equation 3kx² - 3x + 2 = 0 has no real solutions

  • k < ± 1.633

<h3>How to solve quadratic equations to get different answers</h3>

Quadratic equations of the form ax² + bx + c = 0 is solved using the formula

-b+\frac{\sqrt{b^{2}-4ac } }{2a}     OR     -b-\frac{\sqrt{b^{2}-4ac } }{2a}

The equation b² - 4ac is called the discriminant and it is used as follows

To solve the equation and get two real roots: 2x² - x + 3k = 0

  • b² - 4ac > 0

substituting the values gives

(-1)² - 4 * 2 * 3k > 0

1 - 24k > 0

1 > 24k

divide through by coefficient of k

k < 1/24

To solve the equation and get equal roots: 5x² - 2x + (2k − 1) = 0

  • b² - 4ac = 0

substituting the values gives

(-2)² - 4 * 5 * (2k - 1) = 0

4 - 40k + 20 = 0

-40k = -24

divide through by coefficient of k

k = 3/5

To solve the equation and get real roots  -x² + 3x + (k + 1) = 0

  • b² - 4ac > 0

substituting the values gives  

(3)² - 4 * -1 * (k+1) > 0

9 + 4k + 4> 0

4k > -13

divide through by coefficient of k

k > -3.25

To solve the equation and get  no real solutions  3kx² - 3x + 2 = 0

  • b² - 4ac < 0

substituting the values gives  

(-3)² - 4 * 3k * 2 < 0

9 - 24k² > 0

9 > 24k²

divide through by coefficient of k²

k² < 24/9

k < ± 1.633

Learn more about roots of quadratic equations: brainly.com/question/26926523

#SPJ1

4 0
1 year ago
Read 2 more answers
Which choice is equivalent to the fraction below
kaheart [24]

Answer:

D

Step-by-step explanation:

5 0
3 years ago
Read 2 more answers
How do I solve this?
Tanya [424]
Y=-3x+5 hope this helps
3 0
3 years ago
Other questions:
  • Which graph represents 2x+2y=4
    10·2 answers
  • 12 cups is greater or less than 9 fluid ounces
    15·2 answers
  • Find sin^4(a) + cos^4(a), if cos(a) + sin(a) = 1/3
    12·1 answer
  • Answer number 2 pwease
    7·1 answer
  • An important formula from chemistry is PV=nrt . Solve the formula for t
    6·1 answer
  • How long is a piece of string
    9·2 answers
  • What is the size of the product ?
    15·1 answer
  • Can someone please help me???
    13·2 answers
  • Someone please help me out!!
    7·1 answer
  • Use the expansion shown tk simplify the expression
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!