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
kakasveta [241]
3 years ago
12

Does increase in sample size increases degrees of freedom for t-tests.

Mathematics
1 answer:
Elena-2011 [213]3 years ago
3 0
Basically degrees of freedom are related to sample size (n-1). If the df increases, it also stands that the sample size is increasing; the graph of the t-distribution will have skinnier tails, pushing the critical value towards the mean.
You might be interested in
The product of what number and 7 is less than 49?
vredina [299]
The product of 7 and 6 (and anything lower) will give you a product under 49 as 7 times 7 equals 49
3 0
3 years ago
Is square root of 4 rational<br> or irrational
lidiya [134]

Answer:

Rational

Step-by-step explanation:

√4 asks "what times itself is 4?"

The answer is 2.

2x2=4

√4 = 2

2 is rational.

6 0
3 years ago
Read 2 more answers
Susan paid $15.84 for a 7.48 - kg bag of dog food. A few weeks later, she paid $16.58 for a 7.94 - kg bag at a different store.
barxatty [35]

The unit price for the 7.48 is $2 kg per bag and the unit price for the 7.94 is $2 per kg bag, there is no difference in unit rates of both the bag.

<h3>What is unit rate?</h3>

A unit rate means a rate for one of something.

Given that, Susan paid $15.84 for a 7.48 kg bag of dog food. A few weeks later, she paid $16.58 for a 7.94 kg bag at a different store.

15.48/7.48 = $2/kg

16.58/7.94 = $2/kg

Hence, there is no difference in between both the bags, hence either of them are better.

For more references on unit rates, click;

brainly.com/question/11258929

#SPJ1

4 0
1 year ago
Someone help me out please
uysha [10]

1 step (B): raise both sides of the equation to the power of 2.

(\sqrt{x+3}-\sqrt{2x-1})^2=(-2)^2,\\   (x+3)-2\sqrt{x+3}\cdot \sqrt{2x-1}+(2x-1)=4,\\ 3x+2-2\sqrt{x+3}\cdot \sqrt{2x-1}=4.

2 step (A): simplify to obtain the final radical term on one side of the equation.

-2\sqrt{x+3}\cdot \sqrt{2x-1}=4-3x-2,\\ -2\sqrt{x+3}\cdot \sqrt{2x-1}=2-3x,\\ 2\sqrt{x+3}\cdot \sqrt{2x-1}=3x-2.

3 step (F): raise both sides of the equation to the power of 2 again.

(2\sqrt{x+3}\cdot \sqrt{2x-1})^2=(3x-2)^2,\\ 4(x+3)(2x-1)=(3x-2)^2.

4 step (E): simplify to get a quadratic equation.

4(2x^2-x+6x-3)=(3x)^2-2\cdot 3x\cdot 2+2^2,\\ 8x^2+20x-12=9x^2-12x+4,\\ x^2-32x+16=0.

5 step (D): use the quadratic formula to find the values of x.

D=(-32)^2-4\cdot 16=1024-64=960, \\ \sqrt{D} =8\sqrt{5} ,\\ x_{1,2}=\dfrac{32\pm 8\sqrt{5}}{2} =16\pm 4\sqrt{5}.

6 step (C): apply the zero product rule.

x^2-32x+16=(x-16-4\sqrt{5}) (x-16+4\sqrt{5}) ,\\ (x-16-4\sqrt{5}) (x-16+4\sqrt{5}) =0,\\ x_1=16+4\sqrt{5} ,x_2=16-4\sqrt{5}.

Additional 7 step: check these solutions, substituting into the initial equation.

3 0
3 years ago
I need help ASAP, would really appreciate it, marking first as brainliest.
swat32

iiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiii

3 0
3 years ago
Read 2 more answers
Other questions:
  • The ratio of the side length of square A to side length of square B is 4:9. The side length of square A is 12 yards. What is the
    7·1 answer
  • Please help me please
    10·1 answer
  • When a number is decreased by 4.5%, the result is 90. What is the original number to
    6·1 answer
  • A negative number is raised to an even exponent. The result is _____.
    11·2 answers
  • 4x2 + 8x – 9 = 0 complet the square
    13·1 answer
  • Simplify the inequality 2y&gt;4
    10·1 answer
  • OREGON TRAIL! (pls help)
    13·1 answer
  • Simplify the expression (combine like terms):<br> 6x + 12y + 5 + 2y + 8
    13·2 answers
  • Sarah used 2.5 cups of cheese in a dish that serves 10 people. Amy used 1.6 cups of cheese in a dish that serves 8 people.
    14·1 answer
  • Please help me and thanks
    6·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!