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
fenix001 [56]
2 years ago
5

If other factors are held constant, what happens to a confidence interval if the sample variance increases? The range of t score

s increases and the width of the interval increases. The range of t scores decreases and the width of the interval decreases. The standard error increases and the width of the interval increases. The standard error decreases and the width of the interval decreases.
Mathematics
1 answer:
Firlakuza [10]2 years ago
3 0

Answer:

The standard error increases and the width of the interval increases

Step-by-step explanation:

The variance is equal to the square of the standard deviation. An increase in variance will increase the standard deviation.

The width of the confidence interval can be defined as:

W=UL-LL=2z\sigma/\sqrt{n}

The width is proportional to the standard deviation, so when the variance increases, the standard deviation and also the width of the interval increases.

You might be interested in
To the nearest square inch, what is the area of the shaded sector in the circle shown below
egoroff_w [7]
We would need to know the measurements of the circle to answer this  
6 0
3 years ago
Read 2 more answers
22broccy-here you go g-<br> what is the sum of negative two squared plus one?
yaroslaw [1]

Answer:

The sum is equal to 5

Step-by-step explanation:

we know that

The algebraic expression of the phrase "  the sum of negative two squared plus one" is equal to

(-2)^{2}+1\\=4+1\\=5

8 0
3 years ago
Read 2 more answers
Kristen earns $13.50 for each hour she works. On Monday she worked 4 hours. She also worked Tuesday. If she earned a total of $1
insens350 [35]

Answer:8 hours on Tuesday

Step-by-step explanation:13.50 x 4=54

162-54=108

108÷13.50=8

8 0
3 years ago
If a radioactive isotope has a half-life of 6 hours and 12 milligrams is initially present, how much will
Serhud [2]

Answer:0.75 milligrams will  be present in 24 hours

Step-by-step explanation:

Step 1

The formula for radioactive decay can be written as

N(t)=No (1/2)^(t/t 1/2)

where

No= The amount of the radioactive substance at time=0=milligrams

t 1/2= the half-life= 6 hours

t=24 hours

N(t) = the amount at time t

Step 2--- Solving

N(t)=No (1/2)^(t/t 1/2)

=N(t)=12 x ( 1/2) ^ (24/6)

= 12 x (1/2) ^4

= 12 x 0.0625

= 0.75 milligrams

3 0
2 years ago
Click an item in the list or group of pictures at the bottom of the problem and, holding the button down, drag it into the corre
natima [27]

Answer: <

im sorry if this is wrong im not entirely sure :(

6 0
3 years ago
Read 2 more answers
Other questions:
  • How many different four-letter strings can be formed from the letters A, B, C, D, E (repeats allowed) if the first letter must b
    7·2 answers
  • Fraction 2 over 3y = Fraction 1 over 4. y = ___?
    7·1 answer
  • Ashton pick 6 pounds of pecans he wants to show the pecans equally among five of his neighbors how many pounds of pecans it's ne
    13·1 answer
  • a city sets up 14 rows of chairs for an outdoor concert. Each row has 2 more chairs then the row in front of it.
    15·1 answer
  • Which pair of numbers is relatively prime? A. 49 and 770 B. 96 and 105 C. 101 and 145 D. 450 and 741 was thinking d is the close
    5·1 answer
  • Please Explain how you got your answer!
    12·1 answer
  • what is the greatest 5 digit number which when divided by 2, 3, 4, and 5 leaves a remainder of 1 in each case​
    7·1 answer
  • I don’t understand help plzz
    6·1 answer
  • HELP ASAP!!!! Need to get grade up
    7·2 answers
  • Identify the initial condition in the table.
    14·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!