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
nekit [7.7K]
3 years ago
9

I report if u guess or answer randomly. Which confidence level would produce the widest interval when estimating the mean of a p

opulation from the mean and standard deviation of a sample of that population?
A.
54%
B.
61%
C.
38%
D.
26%
Mathematics
1 answer:
kap26 [50]3 years ago
5 0

Answer:

B. 61%

Step-by-step explanation:

When we have the standard deviation of a sample, we use the t-distribution.

The width of an interval is related to the margin of error, which is given by the following equation:

M = T*s

In which T is related to the confidence level(and the sample size) and s is the standard deviation of the sample. Higher confidence levels have higher values of T.

A higher margin of error means that the interval is wider. To have a higher margin of error, we desire a higher value of T, which is achieved with a higher confidence level.

So the correct answer is:

B. 61%

You might be interested in
Find a rational number and an irrational number that are between 5.2 and 5.5. Include the decimal approximation of the irrationa
maw [93]

Answer:

  • Rational: 5.39
  • Irrational: √29 ≈ 5.39

Step-by-step explanation:

Any number you can write completely that has a value between the given numbers will be a suitable rational number.

There are many ways to find irrational numbers in the given range. You can make one up, such as ...

... 5.3102003000400005000006...

a non-terminating, non-repeating decimal. (This one has a pattern that makes it easy to extend, but that doesn't make it rational.)

Or, you can use roots, logs, trig functions, exponential functions, or any of the other functions we study that have irrational values. You can add, subtract, or combine them in other ways. (tan(70°)+∛20, for example) For this, I chose √29, because that square root is between the given numbers and 29 is not a perfect square.

5 0
3 years ago
Which number would make the statement true? (1 point)
Solnce55 [7]

Answer:

0.397

Step-by-step explanation:

Hope this helps!❆

6 0
2 years ago
Read 2 more answers
Which statement about the ordered pairs (−9,3) and (2,−4) is true for the equation 6x−y2=14 ?
ehidna [41]

Answer:

What are the statements to choose from? Send me a message with the choices.

Step-by-step explanation:

6x-2y=14

+2y +2y

6x=14+2y

5 0
3 years ago
A rectangular turf of size 20 feet by 34 feet is surrounded by a flower bed of uniform width
BaLLatris [955]

Answer:

9.18 feet

Step-by-step explanation:

dimensions of whole area = (20 + x)(34 + x)

= 680 + 54x + x^2

where x is the width of the flower bed.

we know that x^2 + 54x + 680 = 1200

x^2 + 54x - 520 = 0

x = 9.18 or x = -63.18

width of flower bed cannot be negative therefore it is width 9.18 feet

6 0
3 years ago
What’s up solution should be used to rewrite 16(x^3+1)^2-22(x^3+1)-3=0
ladessa [460]

Answer:

x = cuberoot( -9/8)= -1.04004  or  x = cuberoot(1/2)=0.7937

Step-by-step explanation:

let y = x^3 + 1

we have:

16*(y) ^2   -  22 (y)  - 3 = 0

16 = 2* 8

-3 = -3* 1

8*-3  + 2 = -24 + 2 = -22

Factor as  (8y + 1)(2y - 3) =  16 (y)^2 - 22(y) - 3 = 0

so  (8y + 1) = 0   or   2y - 3 = 0

y = -1/8   OR   y = 3/2

with  y = x^3 + 1

solve for x

-1/8 =  x^3 + 1

x^3 = - 9/8

x = cuberoot( -9/8)

about x = -1.04004

or   3/2 = x^3 + 1

1/2 = x^3

x =  cuberoot( 1/2 ) = 0.7937

3 0
3 years ago
Other questions:
  • Find the range of the function y= 1/2x +3 when the domain is {-2, 0, 2, 4}
    9·1 answer
  • A coin is tossed 17 times. in how many outcomes do exactly 6 heads occur?
    5·1 answer
  • Solve for m<br> 2/3=m/42
    15·1 answer
  • Linda and Carrie made a trip from their hometown to a city about 200 miles away to attend a friend's wedding. The following char
    11·1 answer
  • Suppose a cylinder has a diameter of 18 feet and a height of h feet. Which equation can be used to find V, the volume of the cyl
    6·1 answer
  • The profit on a jacket can be found by the formula P=24x-125, where x is the number of jackets sold. What is the profit if 15 ja
    10·1 answer
  • Use the triangle at the right. find the length of the missing side
    5·1 answer
  • Lo ran 6 ¼ miles Thelma ran 1 2/3 miles.<br> How many times further did Lo run than Thelma?
    11·1 answer
  • If the markup rate is 50%, then the cost of a shirt that regularly sells for $60 is $40. true or false?​
    14·1 answer
  • Ms. Nailor's daughter received $25
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!